Special Issues
Table of Content

Fluid Mechanics & Thermodynamics in Renewable Energy and HVAC Systems

Submission Deadline: 01 May 2026 View: 1311 Submit to Special Issue

Guest Editors

Assoc. Prof. Suoying He

Email: s.he@sdu.edu.cn

Affiliation: School of Nuclear Science, Energy and Power Engineering, Shandong University, Jinan, 250061, China

Homepage:

Research Interests: Heat and mass transfer enhancement (Evaporative cooling R&D), Cooling tower performance optimization (Dry/Wet/Hybrid cooling), Low-carbon energy and energy-saving storage technologies (PV cooling and cleaning, efficient utilization of PV/T, air source heat pumps and multi-source energy supply systems)

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Prof. Dr. Muzaffar Ali

Email: muzaffar.ali@uettaxila.edu.pk

Affiliation: Department of Energy Engineering, University of Engineering and Technology, Taxila, 47050, Pakistan

Homepage:

Research Interests: Solar Absorption Systems, Solar Desiccant Cooling Systems, M-Cycle Cooling Systems, Energy Modeling and Simulations, evaporative cooling, HVAC systems, Solar Collectors, Nanofluids

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Prof. Dr. Bin Zhao

Email: zhaobin@csust.edu.cn

Affiliation: School of Electrical and Information Engineering, Changsha University of Science and Technology (CSUST), Hunan, 410114, China

Homepage:

Research Interests: New Energy Power Generation and Electric Energy Storage (Exploring innovative methods to generate and store energy efficiently), Power Station Equipment Status Monitoring and Fault Diagnosis (Developing advanced techniques to monitor and diagnose issues in power station equipment), Intelligent Distribution Network and Microgrid (Enhancing the functionality and reliability of smart grids and microgrids)

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Dr. Ghulam Qadir Chaudhary

Email: qadir.me@must.edu.pk

Affiliation: School of Nuclear Science, Energy and Power Engineering, Shandong University, Jinan, 250061, China

Homepage:

Research Interests: Solar Desiccant Cooling Systems, M-Cycle Cooling Systems, Energy systems modeling and transient Simulations, evaporative cooling, HVAC systems, Solar Collectors

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Summary

This Special Issue focuses on cutting-edge advancements in fluid mechanics and thermodynamics related to renewable energy systems and HVAC technologies. Sustainable energy solutions often require optimal designs, energy efficiency and enhanced thermal performance. Therefore, this special issue will explore innovative heat and mass transfer enhancement techniques, including evaporative cooling, hybrid cooling systems, and advanced heat pumps integrated with solar energy technologies. Numerical, experimental, and transient simulation studies related to cooling tower performance (dry, wet, and hybrid), thermal energy storage techniques, system-level design optimization and performance analysis studies are encouraged.


Topics of interest include but are not limited to:
· Multiphase flows in renewable energy systems
· Energy-efficient HVAC systems
· PV cooling and cleaning
· Efficient utilization of PV/T
· Air source heat pumps
· Multi-source energy supply systems
· Evaporative cooling
· Thermal management of power plants
· Modeling of dry/wet/hybrid cooling systems


This special issue aims to bridge fundamental research with industrial applications, fostering innovations in sustainable energy and HVAC systems. Researchers are invited to submit original research, review articles, and their case studies.


Keywords

Multiphase flows, Renewable energy systems, HVAC systems, solar PV & PV/T, Thermal energy storage

Published Papers


  • Open Access

    ARTICLE

    Fluid-Dynamic Loads on Turbine Blades in Downburst Wind Fields

    Yan Wang, Fuqiang Zhang, Long An, Bo Wang, Xueya Yang, Jie Jin
    FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.11, pp. 2651-2671, 2025, DOI:10.32604/fdmp.2025.070122
    (This article belongs to the Special Issue: Fluid Mechanics & Thermodynamics in Renewable Energy and HVAC Systems)
    Abstract A downburst is a strong downdraft generated by intense thunderstorm clouds, producing radially divergent and highly destructive winds near the ground. Its characteristic scales are expressed through random variations in jet height, velocity, and diameter during an event. In this study, a reduced-scale parked wind turbine is exposed to downburst wind fields to investigate the resulting extreme wind loads. The analysis emphasizes both the flow structure of downbursts and the variations of surface wind pressure on turbine blades under different jet parameters. Results show that increasing jet velocity markedly enhances the maximum horizontal wind speed,… More >

    Graphic Abstract

    Fluid-Dynamic Loads on Turbine Blades in Downburst Wind Fields

  • Open Access

    ARTICLE

    Impact of Window-to-Wall Ratio on Thermal Comfort and Energy Performance of Hybrid Cooling Systems

    Dong Liu, Runze Zhang, Anjie Hu, Na Liu, Liu Tang, Xiaozhou Wu, Jun Wang
    FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.10, pp. 2579-2612, 2025, DOI:10.32604/fdmp.2025.070407
    (This article belongs to the Special Issue: Fluid Mechanics & Thermodynamics in Renewable Energy and HVAC Systems)
    Abstract This study compares two end-cooling systems, convective–radiant combined cooling (FR+FC) and fan coil convection (FC), through continuous experimental investigations, focusing on the impact of window-to-wall ratio (WWR) on indoor thermal comfort, temperature distribution, humidity, and energy consumption. Results show that increasing WWR amplifies indoor temperature fluctuations. While the overall predicted mean vote (PMV) remains within the Level-II comfort range (−1.0 to +1.0), the FC system exhibits pronounced local PMV gradients near west-facing windows, especially at 80% WWR, where transient PMV reaches 1.26 close to the window, 0.89 higher than at the room center. In contrast, More >

  • Open Access

    ARTICLE

    Biomimetic Flow Field Inspired by Sunflower Phyllotaxis: Design and Performance Optimization for Solid Oxide Fuel Cells

    Liangxiu Zhang, Qinghai Zhao, Feiteng Cheng
    FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.9, pp. 2177-2199, 2025, DOI:10.32604/fdmp.2025.068499
    (This article belongs to the Special Issue: Fluid Mechanics & Thermodynamics in Renewable Energy and HVAC Systems)
    Abstract To advance the performance of solid oxide fuel cells (SOFCs), this work proposes a novel biomimetic flow field architecture inspired by the geometric arrangement of sunflower florets. Drawing on natural principles of optimal spatial distribution, a multi-physics simulation model of the resulting Sunflower Bionic Flow Field (SBFF) was developed. Building upon this foundation, an enhanced configuration was introduced by integrating an annular channel, yielding a modified variant referred to as Modified Sunflower Bionic Flow Field (MSBFF). For comparative purposes, a conventional Traditional Parallel Flow Field (TPFF) was also analyzed under identical conditions. Simulation results underscore… More >

  • Open Access

    ARTICLE

    CFD-Based Optimization of Aerodynamic Noise in High-Speed Hair Dryer Flow Channels

    Ya Li, Min Deng, Shanyi Hao, Yucong Lin, Yu Lu
    FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.7, pp. 1611-1622, 2025, DOI:10.32604/fdmp.2025.067497
    (This article belongs to the Special Issue: Fluid Mechanics & Thermodynamics in Renewable Energy and HVAC Systems)
    Abstract The noise generated by high-speed hair dryers significantly affects user experience, with aerodynamic design playing a crucial role in controlling sound emissions. This study investigates the aerodynamic noise characteristics of a commercial high-speed hair dryer through Computational Fluid Dynamics (CFD) analysis. The velocity field, streamline patterns, and vector distribution within the primary flow path and internal cavity were systematically examined. Results indicate that strong interactions between the wake flow generated by the guide vanes and the straight baffle in the rear flow path induce vortex structures near the outlet, which are primarily responsible for high-frequency More >

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