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Table of Content

EFD and Heat Transfer IV

Submission Deadline: 30 June 2022 (closed)

Guest Editors

Dr. Zhigang Fang, Wuhan University of Technology, China

Summary

This special issue is devoted to the discussion of recent developments and applications of engineering fluid mechanics and heat transfer.

 

Fluid mechanics is a discipline based on potential flow equations, Euler equations, and Navier-Stokes equations, the development of computer provides theoretical and experimental verification basis for engineering fluid mechanics, and EFD is widely used in the design of aircraft and fluid machinery. Heat transfer studies the transmission patterns of heat energy caused by temperature difference. As theoretical and experimental research continue to close its gaps with production and life, microscale heat transfer, phase change of biological heat transfer, multiphase flow heat transfer, low-temperature heat transfer, and many other interdisciplinary studies and subdisciplines were derived therefrom.

 

In recent years, with the development of micromachining and the growing demand for miniaturization of industrial products, microscale heat transfer has become a hot topic in the research of engineering thermophysics. Related professional experts, researchers, graduate students are welcome to join us in the following topics:

 

1) Aerodynamics, such as aircraft wing design, automotive body design;

2) Fluid-solid coupling analysis;

3) Thermodynamics and heat transfer, such as thermal analysis during engine combustion;

4) Fluid theory method, such as Navier-Stokes equations;

5) Postprocessing and model validation, including Statistical Learning and Uncertainty Quantification.


Keywords

Engineering Fluid Mechanics; Heat Transfer; Aerodynamics; Thermodynamics.

Published Papers


  • Open Access

    ARTICLE

    CFD-Based Optimization of a Shell-and-Tube Heat Exchanger

    Juanjuan Wang, Jiangping Nan, Yanan Wang
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.11, pp. 2761-2775, 2023, DOI:10.32604/fdmp.2023.021175
    (This article belongs to the Special Issue: EFD and Heat Transfer IV)
    Abstract The main objective of this study is the technical optimization of a Shell-and-Tube Heat Exchanger (STHE). In order to do so, a simulation model is introduced that takes into account the related gas-phase circulation. Then, simulation verification experiments are designed in order to validate the model. The results show that the temperature field undergoes strong variations in time when an inlet wind speed of 6 m/s is considered, while the heat transfer error reaches a minimum of 5.1%. For an inlet velocity of 9 m/s, the heat transfer drops to the lowest point, while the More >

  • Open Access

    ARTICLE

    Fluid-Structure Coupled Analysis of the Transient Thermal Stress in an Exhaust Manifold

    Liang Yi, Wen Gang, Nenggui Pan, Wangui Wang, Shengshuai Mo
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.11, pp. 2777-2790, 2023, DOI:10.32604/fdmp.2023.021907
    (This article belongs to the Special Issue: EFD and Heat Transfer IV)
    Abstract The development of thermal stress in the exhaust manifold of a gasoline engine is considered. The problem is addresses in the frame of a combined approach where fluid and structure are coupled using the GT-POWER and STAR-CCM+ software. First, the external characteristic curve of the engine is compared with a one-dimensional simulation model, then the parameters of the model are modified until the curve matches the available experimental values. GT-POWER is then used to transfer the inlet boundary data under transient conditions to STAR-CCM+ in real-time. The temperature profiles of the inner and outer walls More >

  • Open Access

    ARTICLE

    An Analysis of the Static and Dynamic Behavior of the Hydraulic Compensation System of a Multichannel Valve

    Jikang Xu, Ruichuan Li, Yi Cheng, Yanchao Li, Junru Yang, Chenyu Feng, Xinkai Ding, Huazhong Zhang
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.7, pp. 1817-1836, 2023, DOI:10.32604/fdmp.2023.022602
    (This article belongs to the Special Issue: EFD and Heat Transfer IV)
    Abstract Electro-hydraulic proportional valve is the core control valve in many hydraulic systems used in agricultural and engineering machinery. To address the problem related to the large throttling losses and poor stability typically associated with these valves, here, the beneficial effects of a triangular groove structure on the related hydraulic response are studied. A mathematical model of the pressure compensation system based on the power-bond graph method is introduced, and the AMESim software is used to simulate its response. The results show that the triangular groove structure increases the jet angle and effectively compensates for the More >

    Graphic Abstract

    An Analysis of the Static and Dynamic Behavior of the Hydraulic Compensation System of a Multichannel Valve

  • Open Access

    ARTICLE

    Numerical Simulation of the Influence of Water Flow on the Piers of a Bridge for Different Incidence Angles

    Danqing Huang
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.3, pp. 845-854, 2023, DOI:10.32604/fdmp.2022.020314
    (This article belongs to the Special Issue: EFD and Heat Transfer IV)
    Abstract A two-dimensional mathematical model is used to simulate the influence of water flow on the piers of a bridge for different incidence angles. In particular, a finite volume method is used to discretize the Navier-Stokes control equations and calculate the circumferential pressure coefficient distribution on the bridge piers’ surface. The results show that the deflection of the flow is non-monotonic. It first increases and then decreases with an increase in the skew angle. More >

  • Open Access

    ARTICLE

    Analysis of the Thermal Performance of External Insulation in Prefabricated Buildings Using Computational Fluid Dynamics

    Ang Wang, Hui Wang
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.5, pp. 1293-1306, 2022, DOI:10.32604/fdmp.2022.018561
    (This article belongs to the Special Issue: EFD and Heat Transfer IV)
    Abstract This paper investigates the thermal performance of prefabricated exterior walls using the Computational Fluid Dynamics method to reduce energy consumption. The thermal performance of the prefabricated exterior wall was numerically simulated using the software ANSYS Fluent. The composite wall containing the cavity is taken as the research object in this paper after analysis. The simulation suggests that when the cavity thickness is 20 mm and 30 mm, the heat transfer coefficient of the air-sandwich wall is 1.3 and 1.29, respectively. Therefore, the optimal width of the cavity is 20 mm, and the most suitable material More >

  • Open Access

    ARTICLE

    A Mathematical Model of Heat Transfer in Problems of Pipeline Plugging Agent Freezing Induced by Liquid Nitrogen

    Yafei Li, Yanjun Liu
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.3, pp. 775-788, 2022, DOI:10.32604/fdmp.2022.019810
    (This article belongs to the Special Issue: EFD and Heat Transfer IV)
    Abstract A mathematical model for one-dimensional heat transfer in pipelines undergoing freezing induced by liquid nitrogen is elaborated. The basic premise of this technology is that the content within a pipeline is frozen to form a plug or two plugs at a position upstream and downstream from a location where work a modification or a repair must be executed. Based on the variable separation method, the present model aims to solve the related coupled heat conduction and moving-boundary phase change problem. An experiment with a 219 mm long pipe, where water was taken as the plugging More >

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