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
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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…
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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…
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