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Simulation and Analysis of Fluid Flow, Heat Transfer, and Mass Transfer

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Thermal Engineering".

Deadline for manuscript submissions: 20 October 2026 | Viewed by 615

Editors

Department of Refrigeration and Cryogenics Engineering, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Interests: cryogenic compact heat exchanger; liquid hydrogen storage and transportation; simulation modeling and optimization algorithm in engineering

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Guest Editor
School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
Interests: heat and mass transfer; multiphase flow; numerical simulation; multi-physics modeling; optimization algorithms; energy efficiency
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The simulation and analysis of fluid flow, heat transfer, and mass transfer are fundamental to advancing a wide range of scientific and engineering disciplines. With the continuous development of computational power and sophisticated numerical methods, high-fidelity modeling has become an indispensable tool for understanding complex multi-physics phenomena, optimizing system designs, and innovating processes across fields such as energy systems, environmental engineering, chemical processing, aerospace, and biomedical applications. This Special Issue aims to showcase recent breakthroughs, novel methodologies, and cutting-edge applications in computational modeling. It seeks to bring together research that addresses the challenges of accuracy, efficiency, and scalability in simulations, and explores the integration of simulation with data-driven approaches or experimental validation.

This Special Issue will publish high-quality and original research papers. Topics should preferably be relevant to simulation and analysis of fluid flow, heat transfer, and mass transfer, as well as the following:

  • Advances in Computational Fluid Dynamics (CFD) algorithms and high-performance computing
  • Multiphase and multicomponent flow simulations
  • Convective heat transfer modeling at various scales
  • Mass transfer processes coupled with chemical reactions or phase change
  • Simulation and modeling of refrigeration and cryogenic systems
  • Application of optimization algorithm in engineering
  • Artificial-intelligence-driven simulation model

Dr. Ke Li
Dr. Huizhu Yang
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-anonymized peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • computational fluid dynamics (CFD)
  • heat transfer
  • mass transfer
  • numerical simulation
  • multi-physics modeling
  • transport phenomena
  • energy
  • optimization

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Published Papers (1 paper)

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Research

19 pages, 4210 KB  
Article
Flow Uniformity in Z- and U-Type Parallel Pipe Networks: A Comparative CFD Study
by Abdullah M.A. Alsharif, Abdulrhman Farran, Mohamed A. Karali, H. A. Refaey and Eslam Hussein
Appl. Sci. 2026, 16(11), 5464; https://doi.org/10.3390/app16115464 - 31 May 2026
Viewed by 319
Abstract
Z- and U-type parallel pipe network configurations are widely used in engineering applications such as solar collectors, fuel cells, microchannels, spargers, and irrigation systems. Although the Z configuration is more commonly employed, the U configuration may provide advantages under specific operating conditions. This [...] Read more.
Z- and U-type parallel pipe network configurations are widely used in engineering applications such as solar collectors, fuel cells, microchannels, spargers, and irrigation systems. Although the Z configuration is more commonly employed, the U configuration may provide advantages under specific operating conditions. This study presents a comparative analysis of the two configurations in terms of flowdistribution uniformity and pressure drop. A three-dimensional computational fluid dynamics (CFD) model was developed to simulate realistic solar collector conditions, including both fluid and solid domains together with detailed inlet and outlet junctions. The system consists of manifolds and headers with a diameter of 20 mm and a length of 1150 mm, connected to ten parallel tubes of 7 mm diameter and 1780 mm length. The analysis was conducted over a wide range of inlet Reynolds numbers (ReD = 100–5000) to represent diverse practical operating conditions. The CFD model was validated against experimental data from the literature and showed good agreement. Flowdistribution uniformity was evaluated using two quantitative indicators. The results show that flow maldistribution increases with Reynolds number in both configurations; however, the U configuration exhibits significantly improved flow uniformity at higher Reynolds numbers. In addition, both configurations exhibited comparable pressure drop characteristics over the investigated operating range. The findings suggest that the U configuration is better suited to high-flow-rate applications that require improved hydraulic and thermal uniformity, while the Z configuration remains effective at lower Reynolds numbers. Full article
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