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An Immersed Boundary Method for Conjugate Heat Transfer Involving Melting/Solidification

An Immersed Boundary Method for Conjugate Heat Transfer Involving Melting/Solidification Immersed boundary method (IBM) was developed that can solve conjugate heat transfer (CHT) including phase change to simultaneously analyze phase change material (PCM) and forced convection. The CHT was analyzed by determining the effective conductivity to satisfy the continuity of temperature and heat flux at the interface. The PCM was included in the energy equation using the fact that the liquid fraction is proportional to temperature. By applying the method developed in this study, flow, conjugate heat transfer, and melting/solidification can be considered in the unitary domain without the aid of the lattice Boltzmann method (LBM). For code verification, simulations were performed for the one-dimensional solidification of a binary mixture and battery package including the PCM. The IBM simulation results were in good agreement with the results of the analytical solution and finite element method (FEM). A hybrid cooling system with forced convection and PCM was proposed, and a simulation was performed with the code developed in this study. When forced convection is added, the temperature rise can be effectively suppressed but results in temperature non-uniformity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Aeronautical and Space Sciences Springer Journals

An Immersed Boundary Method for Conjugate Heat Transfer Involving Melting/Solidification

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Publisher
Springer Journals
Copyright
Copyright © The Author(s), under exclusive licence to The Korean Society for Aeronautical & Space Sciences 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
ISSN
2093-274X
eISSN
2093-2480
DOI
10.1007/s42405-023-00596-2
Publisher site
See Article on Publisher Site

Abstract

Immersed boundary method (IBM) was developed that can solve conjugate heat transfer (CHT) including phase change to simultaneously analyze phase change material (PCM) and forced convection. The CHT was analyzed by determining the effective conductivity to satisfy the continuity of temperature and heat flux at the interface. The PCM was included in the energy equation using the fact that the liquid fraction is proportional to temperature. By applying the method developed in this study, flow, conjugate heat transfer, and melting/solidification can be considered in the unitary domain without the aid of the lattice Boltzmann method (LBM). For code verification, simulations were performed for the one-dimensional solidification of a binary mixture and battery package including the PCM. The IBM simulation results were in good agreement with the results of the analytical solution and finite element method (FEM). A hybrid cooling system with forced convection and PCM was proposed, and a simulation was performed with the code developed in this study. When forced convection is added, the temperature rise can be effectively suppressed but results in temperature non-uniformity.

Journal

International Journal of Aeronautical and Space SciencesSpringer Journals

Published: May 4, 2023

Keywords: Immersed boundary method (IBM); Conjugate heat transfer (CHT); Phase change material (PCM); Melting; Solidification

References