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Table of Content

Recent Advances in Fluid Mechanics and Thermal Sciences II

Submission Deadline: 31 December 2023 (closed)

Guest Editors

Dr. Jingying Wang, Shandong University, China

Summary

The independent or coupled processes of fluid flow and heat transfer commonly occur in many science and engineering problems, such as blood circulation, weather forecast, combustion, material processing, heat exchanger and aerodynamic heating, etc. This special issue aims to highlight recent advances in fluid mechanics and thermal sciences (RAFT), and theoretical, numerical and experimental research on any science and engineering problems are all welcome. This issue will be coordinated by an excellent EI journal, Fluid Dynamics & Materials Processing (FDMP). Original and review articles on RAFT are both encouraged, including but not limited to the following potential topics:

(1) Hydrodynamics and aerodynamics;

(2) Energy and power engineering;

(3) Marine engineering;

(4) Building environment;

(5) Pollution control;

(6) Chemistry and chemical engineering;

(7) Biofluid and bioheat;

(8) Advanced manufacture.


Keywords

Hydrodynamics, Aerodynamics, Thermal Engineering, Marine Engineering, Building Environment, Pollution Control, Chemical Engineering, Biofluid, Advanced Manufacture

Published Papers


  • Open Access

    REVIEW

    Hydrodynamic Cavitation Enhanced SR-Aops Degradation of Organic Pollutants in Water: A Review

    Xiufeng Zhu, Jingying Wang
    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.4, pp. 671-692, 2024, DOI:10.32604/fdmp.2023.045260
    (This article belongs to this Special Issue: Recent Advances in Fluid Mechanics and Thermal Sciences II)
    Abstract

    SR-AOP (sulfate radical advanced oxidation process) is a novel water treatment method able to eliminate refractory organic pollutants. Hydrodynamic cavitation (HC) is a novel green technology, that can effectively produce strong oxidizing sulfate radicals. This paper presents a comprehensive review of the research advancements in these fields and a critical discussion of the principal factors influencing HC-enhanced SR-AOP and the mechanisms of synergistic degradation. Furthermore, some insights into the industrial application of HC/PS are also provided. Current research shows that this technology is feasible at the laboratory stage, but its application on larger scales requires further understanding and exploration. In… More >

    Graphic Abstract

    Hydrodynamic Cavitation Enhanced SR-Aops Degradation of Organic Pollutants in Water: A Review

  • Open Access

    ARTICLE

    Analysis of the Influence of Geometrical Parameters on the Performance of a Proton Exchange Membrane Fuel Cell

    Guodong Zhang, Huifang Tao, Da Li, Kewei Chen, Guoxiang Li, Shuzhan Bai, Ke Sun
    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.1, pp. 219-237, 2024, DOI:10.32604/fdmp.2023.025566
    (This article belongs to this Special Issue: Recent Advances in Fluid Mechanics and Thermal Sciences II)
    Abstract A suitable channel structure can lead to efficient gas distribution and significantly improve the power density of fuel cells. In this study, the influence of two channel design parameters is investigated, namely, the ratio of the channel width to the bipolar plate ridge width (i.e., the channel ridge ratio) and the channel depth. The impact of these parameters is evaluated with respect to the flow pattern, the gas composition distribution, the temperature field and the fuel cell output capability. The results show that a decrease in the channel ridge ratio and an increase in the channel depth can effectively make… More >

  • Open Access

    ARTICLE

    Optimization of a Diesel Injector Nozzle

    Yaofei Zhang, Guoxiang Li, Shuzhan Bai, Ke Sun, Guihua Wang, Yujie Jia, Zhengxian Fang
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.11, pp. 2933-2951, 2023, DOI:10.32604/fdmp.2023.028804
    (This article belongs to this Special Issue: Recent Advances in Fluid Mechanics and Thermal Sciences II)
    Abstract Multiphase simulations based on the VOF (Volume of Fluid) approach, used in synergy with the cavitation Schnerr-Sauer method and the K-Epsilon turbulence model, have been conducted to study the behavior of an injector nozzle as a function of relevant structural parameters (such as the spray hole diameter and length). The related performances have been optimized in the framework of orthogonal experimental design and range analysis methods. As made evident by the results, as the spray hole diameter increases from 0.10 to 0.20 mm, the outlet mass flow rate grows by 243.23%. A small diameter of the spray hole, however, has… More >

  • Open Access

    ARTICLE

    CFD-Based Optimization of a Diesel Engine Waste Heat Recycle System

    Da Li, Guodong Zhang, Ke Sun, Shuzhan Bai, Guoxiang Li
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.6, pp. 1479-1493, 2023, DOI:10.32604/fdmp.2023.022634
    (This article belongs to this Special Issue: Recent Advances in Fluid Mechanics and Thermal Sciences II)
    Abstract A dedicated heat exchanger model is introduced for the optimization of heavy-duty diesel engines. The model is a prerequisite for the execution of CFD simulations, which are used to improve waste heat recovery in these systems. Several optimization methods coupled with different types of working fluids are compared in terms of exergy efficiency and heat exchanger complicity. The three considered optimization methods all lead to significant improvements in the R245fa and R1233zd systems with a comparatively low evaporation temperature. The optimal R245fa system has the highest efficiency increase (77.49%). The cyclopentane system displays the highest effi- ciency among the optimized… More >

  • Open Access

    ARTICLE

    Influence of Urea Uneven Injection on the Performances of a Diesel Engine

    Chang Huang, Shuzhan Bai, Guoxiang Li, Ke Sun
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.1, pp. 83-93, 2023, DOI:10.32604/fdmp.2022.021662
    (This article belongs to this Special Issue: Recent Advances in Fluid Mechanics and Thermal Sciences II)
    Abstract The influence of heterogeneous flow injection of urea at different velocities and temperatures on NOx conversion efficiency, ammonia storage and ammonia leakage is investigated experimentally. A diesel engine employing a selective catalytic reduction (SCR) technology is considered. It is found that for a fixed injection velocity, the degree of ammonia leakage changes depending on the temperature. The higher the temperature, the faster the catalytic reduction reaction and the smaller the degree of ammonia leakage. The temperature has a great influence on the catalytic reduction reaction rate. At an injection velocity of 10000/h, the average reaction rate at 420 C is… More >

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