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  • Open Access

    ARTICLE

    Experimental and Three-Dimensional Numerical Simulation of Phenomena Induced by Submerged Oblique Jet Scouring

    Hao Chen1,2, Xianbin Teng2,*, Faxin Zhu1,*, Zhibin Zhang2, Jie Wang1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.049731
    (This article belongs to the Special Issue: Computational Fluid Dynamics: Two- and Three-dimensional fluid flow analysis over a body using commercial software)
    Abstract Scouring experiments were conducted using a three-dimensional laser scanning technology for angles of the jet spanning the interval from 0° to 30°, and the characteristics of the scour hole in equilibrium conditions were investigated accordingly. The results indicate that the optimal scouring effects occur when the jet angle is in the ranges between 15° and 20°. Moreover, the dimensionless profiles of the scour hole exhibit a high degree of similarity at different jet angles. Numerical simulations conducted using the Flow-3D software to investigate the bed shear stress along the jet impingement surface have shown that More >

  • Open Access

    ARTICLE

    A Novel Model for the Prediction of Liquid Film Thickness Distribution in Pipe Gas-Liquid Flows

    Yubo Wang1,2,*, Yanan Yu1,2, Qiming Wang3, Anxun Liu3
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.049510
    Abstract A model is proposed for liquid film profile prediction in gas-liquid two-phase flow, which is able to provide the film thickness along the circumferential direction and the pressure gradient in the flow direction. A two-fluid model is used to calculate both gas and liquid phases’ flow characteristics. The secondary flow occurring in the gas phase is taken into account and a sailing boat mechanism is introduced. Moreover, energy conservation is applied for obtaining the liquid film thickness distribution along the circumference. Liquid film thickness distribution is calculated accordingly for different cases; its values are compared More >

  • Open Access

    ARTICLE

    Investigation of Cavitation in NaCl Solutions in a Sonochemical Reactor Using the Foil Test Method

    Michael Kuchinskiy1,2,*, Tatyana Lyubimova1,2, Konstantin Rybkin2, Anastasiia Sadovnikova2, Vasiliy Galishevskiy2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.050059
    (This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)
    Abstract Ultrasonic baths and sonochemical reactors are widely used in industrial applications dealing with surface cleaning and chemical synthesis. The processes of erosion, cleaning and structuring of the surface can be typically controlled by changing relevant influential parameters. In particular, in this work, we experimentally investigate the effect of NaCl concentration (0–5.5 mol/L) on the erosion of an aluminum foil under ultrasonic exposure at a frequency of 28 kHz. Special attention is paid to the determination of cavitation zones and their visualization using heat maps. It is found that at low NaCl concentration (0.3 mol/L), the More >

  • Open Access

    ARTICLE

    Influence of Methane-Hydrogen Mixture Characteristics on Compressor Vibrations

    Vladimir Ya. Modorskii, Ivan E. Cherepanov*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048494
    (This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)
    Abstract A transition to clean hydrogen energy will not be possible until the issues related to its production, transportation, storage, etc., are adequately resolved. Currently, however, it is possible to use methane-hydrogen mixtures. Natural gas can be transported using a pipeline system with the required pressure being maintained by gas compression stations. This method, however, is affected by some problems too. Compressors emergency stops can be induced by vibrations because in some cases, mechanical methods are not able to reduce the vibration amplitude. As an example, it is known that a gas-dynamic flow effect in labyrinth… More >

  • Open Access

    ARTICLE

    Three-Dimensional Convection in an Inclined Porous Layer Subjected to a Vertical Temperature Gradient

    Ivan Shubenkov1,2,*, Tatyana Lyubimova1,2, Evgeny Sadilov1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.050167
    (This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)
    Abstract In this paper, we study the onset and development of three-dimensional convection in a tilted porous layer saturated with a liquid. The layer is subjected to a gravitational field and a strictly vertical temperature gradient. Typically, problems of thermal convection in tilted porous media saturated with a liquid are studied by assuming constant different temperatures at the boundaries of the layer, which prevent these systems from supporting conductive (non-convective) states. The boundary conditions considered in the present work allow a conductive state and are representative of typical geological applications. In an earlier work, we carried… More >

  • Open Access

    ARTICLE

    Experimental Study of Liquid Metal Flow for the Development of a Contact-Less Control Technique

    Aleksandr Poluyanov*, Ilya Kolesnichenko
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.050165
    (This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)
    Abstract The article presents an experimental study on the flow of an eutectic gallium alloy in a cylindrical cell, which is placed in an alternating magnetic field. The magnetic field is generated by a coil connected to an alternating current source. The coil is located at a fixed height in such a way that its plane is perpendicular to the gravity vector, which in turn is parallel to the axis of the cylinder. The position of the cylinder can vary in height with respect to the coil. The forced flow of the considered electrically conductive liquid… More >

  • Open Access

    ARTICLE

    Energy Design and Optimization of Greenhouse by Natural Convection

    H. Benzzine, H. Labrim, Aouatif Saad*, Y. Achour, D. Zejli, R. El Bouayadi
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.050557
    (This article belongs to the Special Issue: Materials and Energy an Updated Image for 2023)
    Abstract This study addresses the pressing need for energy-efficient greenhouse management by focusing on the innovative application of natural ventilation. The primary objective of this study is to evaluate various ventilation strategies to enhance energy efficiency and optimize crop production in agricultural greenhouses. Employing advanced numerical simulation tools, the study conducts a comprehensive assessment of natural ventilation’s effectiveness under real-world conditions. The results underscore the crucial role of the stack effect and strategic window positioning in greenhouse cooling, providing valuable insights for greenhouse designers. Our findings shed light on the significant benefits of optimized ventilation and More >

  • Open Access

    RETRACTION

    Retraction: Optimized Design of Bio-Inspired Wind Turbine Blades

    Yuanjun Dai1,4,*, Dong Wang1, Xiongfei Liu2, Weimin Wu3
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.053146
    Abstract This article has no abstract. More >

  • Open Access

    ARTICLE

    Impact of Varying Blower Opening Degrees on Indoor Environment and Thermal Comfort

    Shengqiang Shi1,2,*, Abdelatif Merabtine3, Rachid Bennacer4, Julien Kauffmann2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.050547
    (This article belongs to the Special Issue: Materials and Energy an Updated Image for 2023)
    Abstract At present, air handling units are usually used indoors to improve the indoor environment quality. However, while introducing fresh air to improve air quality, air velocity has a certain impact on the occupants’ thermal comfort. Therefore, it is necessary to explore the optimization of air-fluid-body interaction dynamics. In this study, the indoor air flow was changed by changing the opening and closing degree of the blower, and the thermal manikin is introduced to objectively evaluate the human thermal comfort under different air velocities. The main experimental results show that the air change rate increases with… More >

  • Open Access

    ARTICLE

    Exploring Capillary Fringe Flow: Quasilinear Modeling with Kirchhoff Transforms and Gardner Model

    Rachid Karra1,*, Abdelatif Maslouhi2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048447
    Abstract Recent studies have underscored the significance of the capillary fringe in hydrological and biochemical processes. Moreover, its role in shallow waters is expected to be considerable. Traditionally, the study of groundwater flow has centered on unsaturated-saturated zones, often overlooking the impact of the capillary fringe. In this study, we introduce a steady-state two-dimensional model that integrates the capillary fringe into a 2-D numerical solution. Our novel approach employs the potential form of the Richards equation, facilitating the determination of boundaries, pressures, and velocities across different ground surface zones. We utilized a two-dimensional Freefem++ finite element model… More >

  • Open Access

    ARTICLE

    Experimental and Numerical Evaluation of the Cavitation Performances of Self-Excited Oscillating Jets

    Yuanyuan Zhao1, Fujian Zhao2, Guohui Li3, Wei Xu4,*, Xiuli Wang2,*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.047298
    Abstract Self-excited oscillating jets (SOJ) are used in several practical applications. Their performances are significantly affected by structural parameters and the target distance. In this study, a geometric model of the SOJ nozzle accounting for multiple structural parameters is introduced, then the related cavitation performances and the optimal target distance are investigated using a Large-Eddy Simulation (LES) approach. Results are also provided about an experiment, which was conducted to validate the simulation results. By analyzing the evolution of the vapor volume fraction at the nozzle outlet, a discussion is presented about the effect of the aforementioned… More >

  • Open Access

    REVIEW

    Accounting for Quadratic and Cubic Invariants in Continuum Mechanics–An Overview

    Artur V. Dmitrenko1,2,*, Vladislav M. Ovsyannikov2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048389
    Abstract The differential equations of continuum mechanics are the basis of an uncountable variety of phenomena and technological processes in fluid-dynamics and related fields. These equations contain derivatives of the first order with respect to time. The derivation of the equations of continuum mechanics uses the limit transitions of the tendency of the volume increment and the time increment to zero. Derivatives are used to derive the wave equation. The differential wave equation is second order in time. Therefore, increments of volume and increments of time in continuum mechanics should be considered as small but finite More >

  • Open Access

    ARTICLE

    Numerical and Experimental Analysis of the Aerodynamic Torque for Axle-Mounted Train Brake Discs

    Nan Liu1,2, Chen Hong3,4,5, Xinchao Su3,4,5, Xing Jin1,2, Chen Jiang3,4,5,*, Yuqi Shi1,2, Bingkun Wang1,2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.047427
    Abstract As the velocity of a train increases, the corresponding air pumping power consumption of the brake discs increases proportionally. In the present experimental study, a standard axle-mounted brake disc with circumferential pillars was analyzed using a 1:1 scale model and a test rig in a wind tunnel. In particular, three upstream velocities were selected on the basis of earlier investigations of trains operating at 160, 250, and 400 km/h, respectively. Moreover, 3D steady computational fluid dynamics (CFD) simulations of the flow field were conducted to compare with the wind tunnel test outcomes. The results for More >

  • Open Access

    ARTICLE

    Study of Flow and Heat Transfer in an Ejector-Driven Swirl Anti-Icing Chamber

    Yi Tu1,*, Yuan Wu2, Yu Zeng3
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.045624
    Abstract The formation of ice on the leading edge of aircraft engines is a serious issue, as it can have catastrophic consequences. The Swirl Anti-Icing (SAI) system, driven by ejection, circulates hot fluid within a 360° annular chamber to heat the engine inlet lip surface and prevent icing. This study employs a validated Computational Fluid Dynamics (CFD) approach to study the impact of key geometric parameters of this system on flow and heat transfer characteristics within the anti-icing chamber. Additionally, the entropy generation rate and exergy efficiency are analyzed to assess the energy utilization in the… More >

  • Open Access

    ARTICLE

    On the Features of Thermal Convection in a Compressible Gas

    Igor B. Palymskiy1,2,*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048829
    (This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)
    Abstract The fully nonlinear equations of gas dynamics are solved in the framework of a numerical approach in order to study the stability of the steady mode of Rayleigh-Bénard convection in compressible, viscous and heat-conducting gases encapsulated in containers with no-slip boundaries and isothermal top and bottom walls. An initial linear temperature profile is assumed. A map of the possible convective modes is presented assuming the height of the region and the value of the temperature gradient as influential parameters. For a relatively small height, isobaric convection is found to take place, which is taken over… More >

  • Open Access

    ARTICLE

    Numerical Simulation of Wet Particles Motion in a Vertical Powder Dryer

    Long Yu, Dongdong Pang*, Minmin She, Hongwei Qiu, Ping Cao, Xiongwei You
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048093
    Abstract In this study, the motion of wet particles in the drying unit of a vertical powder dryer is investigated by using a Discrete element method (DEM) coupled with a liquid bridge force. In particular, by varying parameters such as the particle mass flow rates, the superficial gas velocities, and superficial gas temperatures, the influence of the moisture content on the flow behavior is examined. The results show that when the moisture content increases, the mean particle velocity decreases while the bed mean solid “holdup” and the mean residence time (MRT) of particles grow. It is More >

  • Open Access

    ARTICLE

    Numerical Simulation of Thermocapillary Convection with Evaporation Induced by Boundary Heating

    O. N. Goncharova1, V. B. Bekezhanova2,*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.047959
    (This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)
    Abstract The dynamics of a bilayer system filling a rectangular cuvette subjected to external heating is studied. The influence of two types of thermal exposure on the flow pattern and on the dynamic contact angle is analyzed. In particular, the cases of local heating from below and distributed thermal load from the lateral walls are considered. The simulation is carried out within the frame of a two-sided evaporative convection model based on the Boussinesq approximation. A benzine–air system is considered as reference system. The variation in time of the contact angle is described for both heating More >
    Graphic Abstract

    Numerical Simulation of Thermocapillary Convection with Evaporation Induced by Boundary Heating

  • Open Access

    ARTICLE

    Molecular Dynamics Numerical Simulation of Adsorption Characteristics and Exploitation Limits in Shale Oil Microscopic Pore Spaces

    Guochen Xu*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048337
    Abstract Microscopic pore structure in continental shale oil reservoirs is characterized by small pore throats and complex micro-structures. The adsorption behavior of hydrocarbons on the pore walls exhibits unique physical and chemical properties. Therefore, studying the adsorption morphology of hydrocarbon components in nanometer-sized pores and clarifying the exploitation limits of shale oil at the microscopic level are of great practical significance for the efficient development of continental shale oil. In this study, molecular dynamics simulations were employed to investigate the adsorption characteristics of various single-component shale oils in inorganic quartz fissures, and the influence of pore… More >

  • Open Access

    ARTICLE

    Effect of Lightweight Aggregates Incorporation on the Mechanical Properties and Shrinkage Compensation of a Cement-Ground Granulated Blast Furnace Slag-Phosphogypsum Ternary System

    Yu Wang1,2, Mengyang Ma1,2,*, Yong Long1,2, Qingxiang Zhao1,2, Zhifei Cheng1,2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048695
    (This article belongs to the Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract

    Shrinkage-induced cracking is a common issue in concrete structures, where the formation of cracks not only affects the aesthetic appearance of concrete but also potentially reduces its durability and strength. In this study, the effect of ceramsite sand addition on the properties of a ternary system of cement-ground granulated blast furnace slag (GGBFS)-phosphogypsum (PG) is investigated. In particular, the fluidity, rheology, hydration heat, compressive strength, autogenous shrinkage, and drying shrinkage of the considered mortar specimens are analyzed. The results indicate that an increase in PG content leads to a decrease in fluidity, higher viscosity, lower exothermic

    More >

  • Open Access

    ARTICLE

    Analysis of Snow Distribution and Displacement in the Bogie Region of a High-Speed Train

    Zhihui Du1, Mengge Yu1,*, Jiali Liu2, Xiulong Yao1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.047315
    Abstract Snow interacting with a high-speed train can cause the formation of ice in the train bogie region and affect its safety. In this study, a wind-snow multiphase numerical approach is introduced for high-speed train bogies on the basis of the Euler-Lagrange discrete phase model. A particle-wall impact criterion is implemented to account for the presence of snow particles on the surface. Subsequently, numerical simulations are conducted, considering various snow particle diameter distributions and densities. The research results indicate that when the particle diameter is relatively small, the distribution of snow particles in the bogie cavity More >

  • Open Access

    ARTICLE

    Optimized Design of Bio-Inspired Wind Turbine Blades

    Yuanjun Dai1,4,*, Dong Wang1, Xiongfei Liu2, Weimin Wu3
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.046158
    Abstract To enhance the aerodynamic performance of wind turbine blades, this study proposes the adoption of a bionic airfoil inspired by the aerodynamic shape of an eagle. Based on the blade element theory, a non-uniform extraction method of blade elements is employed for the optimization design of the considered wind turbine blades. Moreover, Computational Fluid Dynamics (CFD) is used to determine the aerodynamic performances of the eagle airfoil and a NACA2412 airfoil, thereby demonstrating the superior aerodynamic performance of the former. Finally, a mathematical model for optimizing the design of wind turbine blades is introduced and More >

  • Open Access

    ARTICLE

    A New Device for Gas-Liquid Flow Measurements Relying on Forced Annular Flow

    Tiantian Yu1, Youping Lv1, Hao Zhong2, Ming Liu1, Pingyuan Gai1, Zeju Jiang1, Peng Zhang1, Xingkai Zhang2,*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.049035
    Abstract A new measurement device, consisting of swirling blades and capsule-shaped throttling elements, is proposed in this study to eliminate typical measurement errors caused by complex flow patterns in gas-liquid flow. The swirling blades are used to transform the complex flow pattern into a forced annular flow. Drawing on the research of existing blockage flow meters and also exploiting the single-phase flow measurement theory, a formula is introduced to measure the phase-separated flow of gas and liquid. The formula requires the pressure ratio, Lockhart-Martinelli number (L-M number), and the gas phase Froude number. The unknown parameters More >

  • Open Access

    ARTICLE

    Coupled CFD-DEM Numerical Simulation of the Interaction of a Flow-Transported Rag with a Solid Cylinder

    Yun Ren1,*, Lianzheng Zhao2, Xiaofan Mo2, Shuihua Zheng2, Youdong Yang1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.046274
    Abstract A coupled Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) approach is used to calculate the interaction of a flexible rag transported by a fluid current with a fixed solid cylinder. More specifically a hybrid Eulerian-Lagrangian approach is used with the rag being modeled as a set of interconnected particles. The influence of various parameters is considered, namely the inlet velocity (1.5, 2.0, and 2.5 m/s, respectively), the angle formed by the initially straight rag with the flow direction (45°, 60° and 90°, respectively), and the inlet position (90, 100, and 110 mm, respectively). The results show More >
    Graphic Abstract

    Coupled CFD-DEM Numerical Simulation of the Interaction of a Flow-Transported Rag with a Solid Cylinder

  • Open Access

    ARTICLE

    Experimental Investigation of Wave–Current Loads on a Bridge Shuttle-Shaped Cap–Pile Foundation

    Chenkai Hong1,2,*, Zhongda Lyu2,*, Fei Wang2, Zhuo Zhao2, Lei Wang2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.042685
    Abstract To scrutinize the characteristics of wave–current loads on a bridge shuttle-shaped cap–pile foundation, a 1:125 test model was considered in a laboratory flume. The inline, transverse and vertical wave–current forces acting on the shuttle-shaped cap–pile group model were measured considering both random waves and a combination of random waves with a current. The experimental results have shown that the wave–current forces can be well correlated with the wave height, the wavelength, the current velocity, the incident direction and the water level in the marine environment. An increase in the current velocity can lead to a More >

  • Open Access

    ARTICLE

    Phase Transition in a Dense Swarm of Self-Propelled Bots

    Dmitry Bratsun*, Kirill Kostarev
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048206
    (This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)
    Abstract

    Swarms of self-organizing bots are becoming important elements in various technical systems, which include the control of bacterial cyborgs in biomedical applications, technologies for creating new metamaterials with internal structure, self-assembly processes of complex supramolecular structures in disordered media, etc. In this work, we theoretically study the effect of sudden fluidization of a dense group of bots, each of which is a source of heat and follows a simple algorithm to move in the direction of the gradient of the global temperature field. We show that, under certain conditions, an aggregate of self-propelled bots can fluidize,

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    Graphic Abstract

    Phase Transition in a Dense Swarm of Self-Propelled Bots

  • Open Access

    ARTICLE

    Influence of Ultra Fine Glass Powder on the Properties and Microstructure of Mortars

    Wei Chen*, Dingdan Liu, Yue Liang
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.046335
    (This article belongs to the Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract This study focuses on the effect of ultrafine waste glass powder on cement strength, gas permeability and pore structure. Varying contents were considered, with particle sizes ranging from 2 to 20 μm. Moreover, alkali activation was considered to ameliorate the reactivity and cementitious properties, which were assessed by using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and specific surface area pore size distribution analysis. According to the results, without the addition of alkali activators, the performance of glass powder mortar decreases as the amount of glass powder increases, affecting various aspects such as strength… More >

  • Open Access

    ARTICLE

    Numerical Simulation of Oil-Water Two-Phase Flow in Low Permeability Tight Reservoirs Based on Weighted Least Squares Meshless Method

    Xin Liu1,*, Kai Yan2, Bo Fang3, Xiaoyu Sun3, Daqiang Feng4, Li Yin5
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.047922
    Abstract In response to the complex characteristics of actual low-permeability tight reservoirs, this study develops a meshless-based numerical simulation method for oil-water two-phase flow in these reservoirs, considering complex boundary shapes. Utilizing radial basis function point interpolation, the method approximates shape functions for unknown functions within the nodal influence domain. The shape functions constructed by the aforementioned meshless interpolation method have δ-function properties, which facilitate the handling of essential aspects like the controlled bottom-hole flow pressure in horizontal wells. Moreover, the meshless method offers greater flexibility and freedom compared to grid cell discretization, making it simpler… More >

  • Open Access

    ARTICLE

    Study on the Relationship between Structural Aspects and Aerodynamic Characteristics of Archimedes Spiral Wind Turbines

    Yuanjun Dai1,2,3,*, Zetao Deng1, Baohua Li2, Lei Zhong1, Jianping Wang1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.046828
    (This article belongs to the Special Issue: Aerodynamic Analysis and Optimal Design of Fluid Machinery)
    Abstract A combined experimental and numerical research study is conducted to investigate the complex relationship between the structure and the aerodynamic performances of an Archimedes spiral wind turbine (ASWT). Two ASWTs are considered, a prototypical version and an improved version. It is shown that the latter achieves the best aerodynamic performance when the spread angles at the three sets of blades are α1 = 30°, α2 = 55°, α3 = 60°, respectively and the blade thickness is 4 mm. For a velocity V = 10 m/s, a tip speed ratio (TSR) = 1.58 and 2, the maximum CP values More >
    Graphic Abstract

    Study on the Relationship between Structural Aspects and Aerodynamic Characteristics of Archimedes Spiral Wind Turbines

  • Open Access

    ARTICLE

    Applying the Shearlet-Based Complexity Measure for Analyzing Mass Transfer in Continuous-Flow Microchannels

    Elena Mosheva1,*, Ivan Krasnyakov2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.049146
    (This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)
    Abstract Continuous-flow microchannels are widely employed for synthesizing various materials, including nanoparticles, polymers, and metal-organic frameworks (MOFs), to name a few. Microsystem technology allows precise control over reaction parameters, resulting in purer, more uniform, and structurally stable products due to more effective mass transfer manipulation. However, continuous-flow synthesis processes may be accompanied by the emergence of spatial convective structures initiating convective flows. On the one hand, convection can accelerate reactions by intensifying mass transfer. On the other hand, it may lead to non-uniformity in the final product or defects, especially in MOF microcrystal synthesis. The ability… More >
    Graphic Abstract

    Applying the Shearlet-Based Complexity Measure for Analyzing Mass Transfer in Continuous-Flow Microchannels

  • Open Access

    ARTICLE

    An Investigation into the Performances of Cement Mortar Incorporating Superabsorbent Polymer Synthesized with Kaolin

    Xiao Huang1,2, Jin Yang3,*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.046360
    (This article belongs to the Special Issue: Advances in Solid Waste Processing and Recycling Technologies for Civil Engineering Materials)
    Abstract Cement-based materials are fundamental in the construction industry, and enhancing their properties is an ongoing challenge. The use of superabsorbent polymers (SAP) has gained significant attention as a possible way to improve the performance of cement-based materials due to their unique water-absorption and retention properties. This study investigates the multifaceted impact of kaolin intercalation-modified superabsorbent polymers (K-SAP) on the properties of cement mortar. The results show that K-SAP significantly affects the cement mortar’s rheological behavior, with distinct phases of water absorption and release, leading to changes in workability over time. Furthermore, K-SAP alters the hydration More >

  • Open Access

    ARTICLE

    Study of a Hydraulic Jump in an Asymmetric Trapezoidal Channel with Different Sluice Gates

    Bouthaina Debabeche1,2,*, Sonia Cherhabil3
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.047403
    Abstract In this study, the main properties of the hydraulic jump in an asymmetric trapezoidal flume are analyzed experimentally, including the so-called sequent depths, characteristic lengths, and efficiency. In particular, an asymmetric trapezoidal flume with a length of 7 m and a width of 0.304 m is considered, with the bottom of the flume transversely inclined at an angle of m = 0.296 and vertical lateral sides. The corresponding inflow Froude number is allowed to range in the interval (1.40 < F1 < 6.11). The properties of this jump are compared to those of hydraulic jumps More >

  • Open Access

    ARTICLE

    A Gasification Technology to Combine Oil Sludge with Coal–Water Slurry: CFD Analysis and Performance Determination

    Xulei Wu1, Hailong Yu1,*, Panrong Wu1, Chaoqian Wang1, Haiqun Chen1, Yunlan Sun1, He Zheng2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.047092
    Abstract The development of more environment-friendly ways to dispose of oil sludge is currently regarded as a hot topic. In this context, gasification technologies are generally seen as a promising way to combine oil sludge with coal–water slurry (CWS) and generate resourceful fuel. In this study, a novel five-nozzle gasifier reactor was analyzed by means of a CFD (Computational fluid dynamic) method. Among several influential factors, special attention was paid to the height-to-diameter ratio of the gasifier and the mixing ratio of oil sludge, which are known to have a significant impact on the flow field, More >

  • Open Access

    ARTICLE

    An Experimental Analysis of Gas-Liquid Flow Breakdown in a T-Junction

    Lihui Ma1,*, Zhuo Han1, Wei Li1, Guangfeng Qi1, Ran Cheng2, Yuanyuan Wang1, Xiangran Mi3, Xiaohan Zhang1, Yunfei Li1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.046405
    (This article belongs to the Special Issue: Multiphase Flow and Vortex Dynamics in Fluid Machinery)
    Abstract When a gas-liquid two-phase flow (GLTPF) enters a parallel separator through a T-junction, it generally splits unevenly. This phenomenon can seriously affect the operation efficiency and safety of the equipment located downstream. In order to investigate these aspects and, more specifically, the so-called bias phenomenon (all gas and liquid flowing to one pipe, while the other pipe is a liquid column that fluctuates up and down), laboratory experiments were carried out by using a T-junction connected to two parallel vertical pipes. Moreover, a GLTPF prediction model based on the principle of minimum potential energy was… More >

  • Open Access

    ARTICLE

    Effects of Different Concentrations of Sulfate Ions on Carbonate Crude Oil Desorption: Experimental Analysis and Molecular Simulation

    Nannan Liu*, Hengchen Qi, Hui Xu, Yanfeng He
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048354
    Abstract

    Low salinity water containing sulfate ions can significantly alter the surface wettability of carbonate rocks. Nevertheless, the impact of sulfate concentration on the desorption of oil film on the surface of carbonate rock is still unknown. This study examines the variations in the wettability of the surface of carbonate rocks in solutions containing varying amounts of sodium sulfate and pure water. The problem is addressed in the framework of molecular dynamics simulation (Material Studio software) and experiments. The experiment’s findings demonstrate that sodium sulfate can increase the rate at which oil moisture is turned into

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  • Open Access

    ARTICLE

    Numerical Analysis of Permeability of Functionally Graded Scaffolds

    Dmitry Bratsun*, Natalia Elenskaya, Ramil Siraev, Mikhail Tashkinov
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.047928
    (This article belongs to the Special Issue: Advanced Problems in Fluid Mechanics)
    Abstract In this work, we numerically study the hydrodynamic permeability of new-generation artificial porous materials used as scaffolds for cell growth in a perfusion bioreactor. We consider two popular solid matrix designs based on triply periodic minimal surfaces, the Schwarz P (primitive) and D (diamond) surfaces, which enable the creation of materials with controlled porosity gradients. The latter property is crucial for regulating the shear stress field in the pores of the scaffold, which makes it possible to control the intensity of cell growth. The permeability of functionally graded materials is studied within the framework of… More >
    Graphic Abstract

    Numerical Analysis of Permeability of Functionally Graded Scaffolds

  • Open Access

    ARTICLE

    Impact of Osmotic Pressure on Seepage in Shale Oil Reservoirs

    Lijun Mu, Xiaojia Xue, Jie Bai*, Xiaoyan Li, Xueliang Han
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.049013
    (This article belongs to the Special Issue: Solid, Fluid, and Thermal Dynamics in the Development of Unconventional Resources )
    Abstract Following large-scale volume fracturing in shale oil reservoirs, well shut-in measures are generally employed. Laboratory tests and field trials have underscored the efficacy of fracturing fluid imbibition during the shut-in phase in augmenting shale oil productivity. Unlike conventional reservoirs, shale oil reservoirs exhibit characteristics such as low porosity, low permeability, and rich content of organic matter and clay minerals. Notably, the osmotic pressure effects occurring between high-salinity formation water and low-salinity fracturing fluids are significant. The current understanding of the mobilization patterns of crude oil in micro-pores during the imbibition process remains nebulous, and the… More >

  • Open Access

    ARTICLE

    Transient Analysis of a Reactor Coolant Pump Rotor Seizure Nuclear Accident

    Mengdong An1, Weiyuan Zhong1, Wei Xu2, Xiuli Wang1,*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.046604
    (This article belongs to the Special Issue: Multiphase Flow and Vortex Dynamics in Fluid Machinery)
    Abstract The reactor coolant pump (RCP) rotor seizure accident is defined as a short-time seizure of the RCP rotor. This event typically leads to an abrupt flow decrease in the corresponding loop and an ensuing reactor and turbine trip. The significant reduction of core coolant flow while the reactor is being operated at full load can have very negative consequences. This potentially dangerous event is typically characterized by a complex transient behavior in terms of flow conditions and energy transformation, which need to be analyzed and understood. This study constructed transient flow and rotational speed mathematical More >

  • Open Access

    ARTICLE

    A Study on the Performances of Solar Air Collectors Having a Hemispherical Dimple on the Absorber Plate

    Shuilian Li1, Fan Zeng1, Xinli Wei2,*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.043614
    Abstract In order to increase the efficiency of solar air collectors, a new variant with a protrusion is proposed in this study, and its performances are analyzed from two points of view, namely, in terms of optics and thermodynamics aspects. By comparing and analyzing the light paths of the protrusion and the dimple, it can be concluded that when sunlight shines on the dimple, it is reflected and absorbed multiple times, whereas for the sunlight shining on the protrusion, there is no secondary reflection or absorption of light. When the lighting area and the properties of… More >

  • Open Access

    ARTICLE

    A Well Productivity Model for Multi-Layered Marine and Continental Transitional Reservoirs with Complex Fracture Networks

    Huiyan Zhao1, Xuezhong Chen1, Zhijian Hu2,*, Man Chen1, Bo Xiong3, Jianying Yang1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2024.048840
    (This article belongs to the Special Issue: Advances in Seepage Mechanism and Numerical Simulation of Unconventional Reservoirs)
    Abstract Using the typical characteristics of multi-layered marine and continental transitional gas reservoirs as a basis, a model is developed to predict the related well production rate. This model relies on the fractal theory of tortuous capillary bundles and can take into account multiple gas flow mechanisms at the micrometer and nanometer scales, as well as the flow characteristics in different types of thin layers (tight sandstone gas, shale gas, and coalbed gas). Moreover, a source-sink function concept and a pressure drop superposition principle are utilized to introduce a coupled flow model in the reservoir. A… More >

  • Open Access

    ARTICLE

    Influence of Polyaluminum Chloride Residue on the Strength and Microstructure of Cement-Based Materials

    Ping Xu1,*, Zhiwei Zhang1, Zhenguo Hou2,3, Mankui Zheng1, Jin Tong1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.046183
    Abstract In this paper, cement and dechlorinated Polyaluminum Chloride Residue (PACR) have been used to prepare a net slurry and mortar specimens. Two hydration activity indicators have been used to quantitatively analyze the dechlorinated PACR hydration activity. In particular, the effect of dechlorinated PACR content on the compressive strength of mortar has been assessed by means of compressive strength tests. Moreover, X-ray diffraction (XRD) and scanning electron microscopy (SEM) have been employed to observe the microstructure of the considered hydration products. The following results have been obtained. The 28th day activity index of the dechlorinated PACR… More >

  • Open Access

    ARTICLE

    An Experimental Study on the Effect of a Nanofluid on Oil-Water Relative Permeability

    Hui Tian1, Dandan Zhao1, Yannan Wu2,3,*, Xingyu Yi1, Jun Ma1, Xiang Zhou4
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.044833
    Abstract

    The low porosity and low permeability of tight oil reservoirs call for improvements in the current technologies for oil recovery. Traditional chemical solutions with large molecular size cannot effectively flow through the nano-pores of the reservoir. In this study, the feasibility of Nanofluids has been investigated using a high pressure high temperature core-holder and nuclear magnetic resonance (NMR). The results of the experiments indicate that the specified Nanofluids can enhance the tight oil recovery significantly. The water and oil relative permeability curve shifts to the high water saturation side after Nanofluid flooding, thereby demonstrating an increase

    More >
    Graphic Abstract

    An Experimental Study on the Effect of a Nanofluid on Oil-Water Relative Permeability

  • Open Access

    ARTICLE

    Structure Optimization of a Tesla Turbine Using an Organic Rankine Cycle Technology

    Yongguo Li1,2, Caiyin Xu1,2,*, Can Qin1,2, Dingjian Zheng1,2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.044804
    Abstract The so-called ORC (Organic Rankine Cycle) heat recovery technology has attracted much attention with regard to medium and low temperature waste heat recovery. In the present study, it is applied to a Tesla turbine. At the same time, the effects of the disc speed, diameter and inter-disc gap on the internal flow field and output power of the turbine are also investigated by means of CFD (Computational Fluid Dynamics) numerical simulation, by which the pressure, velocity, and output efficiency of the internal flow field are obtained under different internal and external conditions. The highest efficiency More >

  • Open Access

    ARTICLE

    A Novel Method for Determining the Void Fraction in Gas-Liquid Multi-Phase Systems Using a Dynamic Conductivity Probe

    Xiaochu Luo1, Xiaobing Qi2, Zhao Luo3, Zhonghao Li4, Ruiquan Liao1, Xingkai Zhang1,*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.045737
    Abstract Conventional conductivity methods for measuring the void fraction in gas-liquid multiphase systems are typically affected by accuracy problems due to the presence of fluid flow and salinity. This study presents a novel approach for determining the void fraction based on a reciprocating dynamic conductivity probe used to measure the liquid film thickness under forced annular-flow conditions. The measurement system comprises a cyclone, a conductivity probe, a probe reciprocating device, and a data acquisition and processing system. This method ensures that the flow pattern is adjusted to a forced annular flow, thereby minimizing the influence of More >

  • Open Access

    ARTICLE

    Evaluation of Well Spacing for Primary Development of Fractured Horizontal Wells in Tight Sandstone Gas Reservoirs

    Fang Li1,*, Juan Wu1, Haiyong Yi2, Lihong Wu2, Lingyun Du1, Yuan Zeng1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.043256
    (This article belongs to the Special Issue: Solid, Fluid, and Thermal Dynamics in the Development of Unconventional Resources )
    Abstract Methods for horizontal well spacing calculation in tight gas reservoirs are still adversely affected by the complexity of related control factors, such as strong reservoir heterogeneity and seepage mechanisms. In this study, the stress sensitivity and threshold pressure gradient of various types of reservoirs are quantitatively evaluated through reservoir seepage experiments. On the basis of these experiments, a numerical simulation model (based on the special seepage mechanism) and an inverse dynamic reserve algorithm (with different equivalent drainage areas) were developed. The well spacing ranges of Classes I, II, and III wells in the Q gas More >

  • Open Access

    ARTICLE

    Optimal Design of High-Speed Partial Flow Pumps using Orthogonal Tests and Numerical Simulations

    Jiaqiong Wang1,2, Tao Yang1, Chen Hu1, Yu Zhang3,*, Ling Zhou1,2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.045825
    Abstract To investigate the influence of structural parameters on the performances and internal flow characteristics of partial flow pumps at a low specific speed of 10000 rpm, special attention was paid to the first and second stage impeller guide vanes. Moreover, the impeller blade outlet width, impeller inlet diameter, blade inclination angle, and number of blades were considered for orthogonal tests. Accordingly, nine groups of design solutions were formed, and then used as a basis for the execution of numerical simulations (CFD) aimed at obtaining the efficiency values and heads for each design solution group. The More >

  • Open Access

    ARTICLE

    Study on the Impact of Massive Refracturing on the Fracture Network in Tight Oil Reservoir Horizontal Wells

    Jianchao Shi1,2, Yanan Zhang3, Wantao Liu1,2, Yuliang Su3,*, Jian Shi1,2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.044500
    (This article belongs to the Special Issue: Solid, Fluid, and Thermal Dynamics in the Development of Unconventional Resources )
    Abstract Class III tight oil reservoirs have low porosity and permeability, which are often responsible for low production rates and limited recovery. Extensive repeated fracturing is a well-known technique to fix some of these issues. With such methods, existing fractures are refractured, and/or new fractures are created to facilitate communication with natural fractures. This study explored how different refracturing methods affect horizontal well fracture networks, with a special focus on morphology and related fluid flow changes. In particular, the study relied on the unconventional fracture model (UFM). The evolution of fracture morphology and flow field after More >

  • Open Access

    ARTICLE

    Effects of Temperature and Liquid Nitrogen (LN2) on Coal’s Mechanical and Acoustic Emission (AE) Properties

    Teng Teng1,2, Yuhe Cai3, Linchao Wang3,*, Yanzhao Zhu2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.044532
    (This article belongs to the Special Issue: Fluids, Materials and Related Disasters in Geotechnical and Mining Engineering)
    Abstract Liquid nitrogen has shown excellent performances as a good fracturing medium in the extraction of unconventional natural gas, and its application in coalbed methane extraction is currently a research hotspot. This study focuses on the acoustic emission properties of coal specimens treated utilizing liquid nitrogen with varying initial temperatures in a three-point bending environment. Through examination of the load-displacement curves of the considered coal samples, their mechanical properties are also revealed for different initial temperatures and cycling frequencies. The findings demonstrate a gradual decline in the maximum load capacity of coal rock as the temperature… More >

  • Open Access

    ARTICLE

    Optimization of a Pipeline-Type Savonius Hydraulic Turbine

    Xiaohui Wang1,2,3,*, Kai Zhang1, Xiaobang Bai4, Senchun Miao1, Zanxiu Wu1, Jicheng Li1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.043272
    Abstract This study focuses on a DN50 pipeline-type Savonius hydraulic turbine. The torque variation of the turbine in a rotation cycle is analyzed theoretically in the framework of the plane potential flow theory. Related numerical simulations show that the change in turbine torque is consistent with the theoretical analysis, with the main power zone and the secondary power zone exhibiting a positive torque. In contrast, the primary resistance zone and the secondary resistance zone are characterized by a negative torque. Analytical relationships between the turbine’s internal flow angle θ, the deflector’s inclination angle α0, and the… More >

  • Open Access

    ARTICLE

    Gas-Water Production of a Continental Tight-Sandstone Gas Reservoir under Different Fracturing Conditions

    Yan Liu1, Tianli Sun2, Bencheng Wang1,*, Yan Feng2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.041852
    (This article belongs to the Special Issue: Solid, Fluid, and Thermal Dynamics in the Development of Unconventional Resources )
    Abstract A numerical model of hydraulic fracture propagation is introduced for a representative reservoir (Yuanba continental tight sandstone gas reservoir in Northeast Sichuan). Different parameters are considered, i.e., the interlayer stress difference, the fracturing discharge rate and the fracturing fluid viscosity. The results show that these factors affect the gas and water production by influencing the fracture size. The interlayer stress difference can effectively control the fracture height. The greater the stress difference, the smaller the dimensionless reconstruction volume of the reservoir, while the flowback rate and gas production are lower. A large displacement fracturing construction More >

  • Open Access

    ARTICLE

    A Novel Fracturing Fluid with High-Temperature Resistance for Ultra-Deep Reservoirs

    Lian Liu1,2, Liang Li1,2, Kebo Jiao1,2,*, Junwei Fang1,2, Yun Luo1,2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.030109
    (This article belongs to the Special Issue: Advances in Seepage Mechanism and Numerical Simulation of Unconventional Reservoirs)
    Abstract Ultra-deep reservoirs play an important role at present in fossil energy exploitation. Due to the related high temperature, high pressure, and high formation fracture pressure, however, methods for oil well stimulation do not produce satisfactory results when conventional fracturing fluids with a low pumping rate are used. In response to the above problem, a fracturing fluid with a density of 1.2~1.4 g/cm3 was developed by using Potassium formatted, hydroxypropyl guanidine gum and zirconium crosslinking agents. The fracturing fluid was tested and its ability to maintain a viscosity of 100 mPa.s over more than 60 min was More >

  • Open Access

    ARTICLE

    Analysis of Calcined Red Mud Properties and Related Mortar Performances

    Zhengfan Lyu1,3, Yulin Li2,3, Mengmeng Fan1,3,*, Yan Huang1, Chenguang Li2
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.043512
    Abstract Red mud (RM) is a low-activity industrial solid waste, and its utilization as a resource is currently a hot topic. In this study, the micro characteristics of red mud at different calcination temperatures were analyzed using X-ray diffraction and scanning electron microscopy. The performance of calcined red mud was determined through mortar strength tests. Results indicate that high-temperature calcination can change the mineral composition and microstructure of red mud, and increase the surface roughness and specific surface area. At the optimal temperature of 700°C, the addition of calcined red mud still leads to a decrease More >
    Graphic Abstract

    Analysis of Calcined Red Mud Properties and Related Mortar Performances

  • Open Access

    ARTICLE

    A Numerical Study on the Effect of the Backflow Hole Position on the Performances of a Self-Priming Pump

    Dongwei Wang1,*, Lijian Cao1, Weidong Wang2, Jiajun Hu1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.042654
    Abstract A self-priming pump is a centrifugal pump that has the ability to prime itself. Typically, its performance depends on the configuration of its reflux hole. In this study, the ANSYS FLUENT software is used to investigate the effects of three different radial positions of the reflux hole on gas-liquid two-phase distribution, pressure pulsation, and imp during self-priming. The research results indicate that: (1) The effective channel size for the reflux liquid to enter the volute varies depending on the location of the reflux hole. The effect of the impeller rotation on the reflux liquid becomes… More >

  • Open Access

    ARTICLE

    Aerodynamic Analysis and Optimization of Pantograph Streamline Fairing for High-Speed Trains

    Xiang Kan1, Yan Li2, Tian Li1,*, Jiye Zhang1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.044050
    Abstract A pantograph serves as a vital device for the collection of electricity in trains. However, its aerodynamic resistance can limit the train’s running speed. As installing fairings around the pantograph is known to effectively reduce the resistance, in this study, different fairing lengths are considered and the related aerodynamic performances of pantograph are assessed. In particular, this is accomplished through numerical simulations based on the k-ω Shear Stress Transport (SST) two-equation turbulence model. The results indicate that the fairing diminishes the direct impact of high-speed airflow on the pantograph, thereby reducing its aerodynamic resistance. However, More >

  • Open Access

    ARTICLE

    Performance Characterization of CR/PU Asphalt for Potential Application in Assembled Fast-Repairing Engineering

    Hong Pang1, Ao Lu1, Ming Xiong1, Chen Chen1, Xian Cao1, Xiong Xu2,3,*, Jing Wang1
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.044000
    Abstract Conventional repairing methods for asphalt pavement have some inconveniences, such as insufficient strength, and are typically time-consuming. To address these issues, this study proposes a new technological method to design and prepare a high-performance assembled asphalt concrete block for fast repair of the potholes. A series of composite modified asphalt binders with 10% crumb rubber (CR) and different dosages (0%, 1%, 3%, 5%) of polyurethane (PU) are examined to determine the optimized binder. Subsequently, the corresponding asphalt mixtures are prepared for further comparison and assessment of engineering properties, such as moistureinduced damage, high-temperature deformation, and More >

  • Open Access

    ARTICLE

    Smoothed-Particle Hydrodynamics Simulation of Ship Motion and Tank Sloshing under the Effect of Regular Waves

    Mingming Zhao, Jialong Jiao*
    FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2023.043744
    Abstract Predicting the response of liquefied natural gas (LNG) contained in vessels subjected to external waves is extremely important to ensure the safety of the transportation process. In this study, the coupled behavior due to ship motion and liquid tank sloshing has been simulated by the Smoothed-Particle Hydrodynamics (SPH) method. Firstly, the sloshing flow in a rectangular tank was simulated and the related loads were analyzed to verify and validate the accuracy of the present SPH solver. Then, a three-dimensional simplified LNG carrier model, including two prismatic liquid tanks and a wave tank, was introduced. Different More >