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Visual digital analysis and optimization in phase change heat transfer processes

Submission Deadline: 20 November 2024 (closed) View: 163

Guest Editors

Dr. Jianxin Xu, Professor,State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan 650093, PR China
Professor Jianxin Xu got his Ph.D degree from Kunming University of Science and Technology in 2012. His interests include research on efficient utilization of low temperature waste heat, intensified heat transfer in multiphase flow, computational mathematics, data mining theory and methods, digitization and intelligence of metallurgical processes, etc. He is a visiting scholar at the University of Manchester in the United Kingdom. He has led multiple national-level projects, sub-projects of national key research and development programs, and key provincial projects. He has published more than 100 papers, including over 40 SCI papers in international journals such as Energy Conversion and Management, International Journal of Heat and Mass Transfer, and others.

Dr. Qingtai Xiao, Associate Professor, State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan 650093, PR China
Dr. Qingtai Xiao got his Ph.D degree from Kunming University of Science and Technology in 2019 and now is an associate professor in Kunming University of Science and Technology. His interests include multiphase flow inside metallurgical and energy engineering. He has undertaken research projects including Natural Science Foundation of Yunnan Province and published more than 40 academic papers.

Dr. Bo Yu, Professor, Beijing Institute of Petrochemical Technology
Professor Bo Yu is a Changjiang Scholar. His interests include computational fluid dynamics and heat transfer, hydrogen/oil and gas storage and transportation technology, and comprehensive utilization of solar and geothermal energy. He has published over 150 SCI papers as the first or corresponding author, and has been granted 18 national invention patents and 34 software copyrights. He has authored or co-authored two textbooks, as well as one monograph as the sole author and one as a co-author.

Summary

Phase change heat transfer is an efficient approach to energy conversion. Compared with single phase forced convection heat transfer-, phase change heat transfer exhibits higher heat transfer efficiency. However, phase change includes fluid dynamics, heat and mass transfer and the variation of multi-physical parameters, it is a complex multi-physical field coupling problem. One of the challenges faced in phase change heat transfer research is how to establish accurate and effective mathematical models. Visualization technology can explore the internal mechanism of heat transfer process and phase change process by observing and analyzing the fluid flow and the morphological changes of phase change interface. By using Computational Fluid Dynamics (CFD) techniques, the phase change heat transfer process can be numerically simulated to predict fluid flow, temperature distribution, and phase change interfaces. These results can be used for design and optimization of heat transfer equipment.


Suggested topics related to this special issue include, but are not limited to:

  • Application and optimization of numerical simulation method in phase change heat transfer process

  • Multiphase Flow and Heat Transfer during Phase Change

  • Microscale Phase Change Heat Transfer


Keywords

Phase change heat transfer; Flow field visualization; Numerical analysis; Multiphysics coupling

Published Papers


  • Open Access

    ARTICLE

    Experimental Investigation of Particles Dynamics and Solid-Liquid Mixing Uniformity in a Stirred Tank

    Kai Yang, Qinwen Yao, Yingshan Li, Wanchang Chen, Saleh Khorasani, Hua Wang, Qingtai Xiao
    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.11, pp. 2585-2602, 2024, DOI:10.32604/fdmp.2024.050704
    (This article belongs to the Special Issue: Visual digital analysis and optimization in phase change heat transfer processes)
    Abstract Particle suspension and deposition dynamics are significant factors affecting the level of mixing quality in solid-liquid two-phase stirring processes. In general, the ability to increase the suspension rate and minimize deposition effects is instrumental in improving the uniformity of particle mixing, accelerating the reaction of involved solid-liquid two-phase, and improving the efficiency of production operations. In this work, suspension and deposition indicator based on the Betti number and a uniformity indicator are introduced and obtained by means of image analysis. The influence of the blade type, rotation speed, blade diameter and blade bottom height on… More >

    Graphic Abstract

    Experimental Investigation of Particles Dynamics and Solid-Liquid Mixing Uniformity in a Stirred Tank

  • Open Access

    ARTICLE

    Simulation Study on the Heat Transfer Characteristics of a Spray-Cooled Single-Pipe Cooling Tower

    Kaiyong Hu, Zhaoyi Chen, Yunqing Hu, Huan Sun, Zhili Sun, Tonghua Zou, Jinghong Ning
    FDMP-Fluid Dynamics & Materials Processing, Vol.20, No.9, pp. 2109-2126, 2024, DOI:10.32604/fdmp.2024.050773
    (This article belongs to the Special Issue: Visual digital analysis and optimization in phase change heat transfer processes)
    Abstract The current study focuses on spray cooling applied to the heat exchange components of a cooling tower. An optimization of such processes is attempted by assessing different spray flow rates and droplet sizes. For simplicity, the heat exchanger of the cooling tower is modeled as a horizontal round tube and a cooling tower spray cooling model is developed accordingly using a computational fluid dynamics (CFD) software. The study examines the influence of varying spray flow rates and droplet sizes on the heat flow intensity between the liquid layer on the surface of the cylindrical tube… More >

    Graphic Abstract

    Simulation Study on the Heat Transfer Characteristics of a Spray-Cooled Single-Pipe Cooling Tower

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