Saykat Poddar¹, Jui Saha¹, Badhan Neogi¹, Mohammad Sanjeed Hasan¹, Muhammad Minarul Islam¹, Giulio Lorenzini^2,*, Md. Mahmud Alam³

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.2, pp. 233-252, 2025, DOI:10.32604/fdmp.2025.056131 - 06 March 2025

Abstract This study presents a numerical analysis of the steady-state solution for transient magnetohydrodynamic (MHD) dissipative and radiative fluid flow, incorporating an induced magnetic field (IMF) and considering a relatively high concentration of foreign mass (accounting for Soret and Dufour effects) over a vertically oriented semi-infinite plate. The governing equations were normalized using boundary layer (BL) approximations. The resulting nonlinear system of partial differential equations (PDEs) was discretized and solved using an efficient explicit finite difference method (FDM). Numerical simulations were conducted using MATLAB R2015a, and the developed numerical code was verified through comparison with another… More >

Shun Chen^1,2,3, Yingjie Wang¹, Xingyang He^1,2,3,*, Ying Su^1,2,3, Yingyuan Pan¹, Yimin Cao¹, Wentian Wang¹, Chao Yang^1,2,3, Bo Jiang^1,2,3, Shaolin Zhang⁴

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.2, pp. 387-404, 2025, DOI:10.32604/fdmp.2024.055697 - 06 March 2025

Abstract Styrene-butadiene-styrene (SBS) modified asphalt (SA) has long found effective applications in road construction materials. When combined with fillers, SBS-modified asphalt has demonstrated promising resistance to fatigue cracking caused by temperature fluctuations and aging. In this study, molybdenum disulfide (MoS₂) and polyphosphoric acid (PPA) were ground in naphthenic oil (NO) and subjected to mechanical activation to create PPA-modified MoS₂, referred to as OMS-PPA. By blending various ratios of OMS-PPA with SBS-modified asphalt, composite-modified asphalts were successfully developed to enhance their overall properties. To assess the mechanical characteristics and stability of these modified asphalts, various methods were employed,… More > Graphic Abstract

Bailong Sun¹, Tian Li^1,*, Deng Qin¹, Yan Li²

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.2, pp. 371-385, 2025, DOI:10.32604/fdmp.2024.055519 - 06 March 2025

Abstract High-speed maglev trains (HSMTs) can run at high running speeds due to their unique design. The pressure waves that these trains generate while passing each other are therefore very intense, and can even have safety implications. In order to reduce the transient impact of such waves, the standard k-ε turbulence model is used in this work to assess the effect of railway spacing on the aerodynamic loads, pressure and surrounding flow field of 600 km/h maglev trains passing each other in open air. The sliding mesh technique is used to determine the relative motion between the More >

Xinli Zhao^1,*, Qianhua Xiao², Xuewei Liu³, Yu Shi⁴, Xiangji Dou¹, Guoqiang Xing¹

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.2, pp. 427-444, 2025, DOI:10.32604/fdmp.2024.052646 - 06 March 2025

Abstract Tight oil reservoirs face significant challenges, including rapid production decline, low recovery rates, and a lack of effective energy replenishment methods. In this study, a novel development model is proposed, based on inter-fracture injection following volumetric fracturing and relying on a high-temperature and high-pressure large-scale physical simulation system. Additionally, the CMG (Computer Modelling Group Ltd., Calgary City, Canada) software is also used to elucidate the impact of various single factors on the production of horizontal wells while filtering out the interference of others. The effects of fracture spacing, fracture half-length, and the injection-production ratio are… More >

Teng Xia^1,2, Xiaohui Zhang^1,2,*, Ding Ma^1,2, Zhi Yang^1,2, Xinting Tong³, Yutang Zhao⁴, Hua Wang^1,2

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.1, pp. 121-140, 2025, DOI:10.32604/fdmp.2025.058683 - 24 January 2025

Abstract Smelting with oxygen bottom blowing is one of the main methods used in the frame of copper pyrometallurgy. With this approach, feed materials and oxygen-enriched air are introduced in reversed order to enhance multiphase flow within the furnace. Understanding the flow structure and temperature distribution in this setup is crucial for optimizing production. In this study, gas-liquid interactions, and temperature profiles under varying air-injection conditions are examined by means of numerical simulation for a 3.2 m × 20 m furnace. The results indicate that the high-velocity regions are essentially distributed near the lance within the… More > Graphic Abstract

Ikram Belmehdi^1,*, Boumedienne Beladjine¹, Mohamed Djermouni¹, Amina Sabeur¹, Mohammed El Ganaoui²

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.1, pp. 71-85, 2025, DOI:10.32604/fdmp.2024.058510 - 24 January 2025

Abstract The objective of this study is to propose an optimal plant design for blue hydrogen production aboard a liquefied natural gas (LNG) carrier. This investigation focuses on integrating two distinct processes—steam methane reforming (SMR) and ship-based carbon capture (SBCC). The first refers to the common practice used to obtain hydrogen from methane (often derived from natural gas), where steam reacts with methane to produce hydrogen and carbon dioxide (CO₂). The second refers to capturing the CO₂ generated during the SMR process on board ships. By capturing and storing the carbon emissions, the process significantly reduces its… More >

Tingrui Liu¹, Qinghu Cui^1,2, Dan Xu^1,*

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.1, pp. 1-36, 2025, DOI:10.32604/fdmp.2024.058444 - 24 January 2025

Abstract With the gradual increase in the size and flexibility of composite blades in large wind turbines, problems related to aeroelastic instability and blade vibration are becoming increasingly more important. Given their impact on the lifespan of wind turbines, these subjects have become important topics in turbine blade design. In this article, first aspects related to the aeroelastic (structural and aerodynamic) modeling of large wind turbine blades are summarized. Then, two main methods for blade vibration control are outlined (passive control and active control), including the case of composite blades. Some improvement schemes are proposed More > Graphic Abstract

Lihui Ma¹, Wei Li¹, Yuanyuan Wang¹, Pan Zhang¹, Lina Wang¹, Xinying Liu¹, Meiqin Dong², Xuewen Cao², Jiang Bian^3,*

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.1, pp. 107-119, 2025, DOI:10.32604/fdmp.2024.058295 - 24 January 2025

Abstract Gas-liquid flow (GLF), especially slug and annular flows in oil and gas gathering and transportation pipelines, become particularly complex inside elbows and can easily exacerbate pipeline corrosion and damage. In this study, FLUENT was used to conduct 3D simulations of slug and annular flow in elbows for different velocities to assess the ensuing changes in terms of pressure. In particular, the multifluid VOF (Volume of Fraction) model was chosen. The results indicate that under both slug and annular flow conditions, the pressure inside the elbow is lower than the outside. As the superficial velocity More >

Saeed Dinarvand^*, Amirmohammad Abbasi, Sogol Gharsi

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.1, pp. 37-60, 2025, DOI:10.32604/fdmp.2024.057545 - 24 January 2025

Abstract The present review explores the promising role of nanofluids and related hybrid variants in enhancing the efficiency of flat tube car radiators. As vehicles become more advanced and demand better thermal performance, traditional coolants are starting to fall short. Nanofluids, which involve tiny nanoparticles dispersed into standard cooling liquids, offer a new solution by significantly improving heat transfer capabilities. The article categorizes the different types of nanofluids (ranging from those based on metals and metal oxides to carbon materials and hybrid combinations) and examines their effects on the improvement of radiator performance. General consensus More >

Heng Zhao¹, Honghua Ma², Hui Liu¹, Xiang Yan¹, Huaqing Yu¹, Yongjun Xiao¹, Xiao Xiao^3,*

FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.1, pp. 87-105, 2025, DOI:10.32604/fdmp.2024.056577 - 24 January 2025

Abstract The behavior of single-phase flow and conjugate heat transfer in micro-channel heat sinks (MCHS) subjected to a uniform heat flux is investigated by means of numerical simulations. Various geometrical configurations are examined, particularly, the combinations of rectangular solid and perforated blocks, used to create a disturbance in the flow. The analysis focuses on several key aspects and related metrics, including the temperature distribution, the mean Fanning friction factor, the pressure drop, the Nusselt number, and the overall heat transfer coefficient across a range of Reynolds numbers (80–870). It is shown that the introduction of such More >