Numerical Study of Heat and Mass Transfer in the Original Structure and Homogeneous Substitution Model for Three Dimensional Porous Metal Foam

Hanbing Ke, Xuzhi Zhou, Tao Liu, Yu Wang and Hui Wang ()
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Hanbing Ke: Science and Technology on Thermal Energy and Power Laboratory, Wuhan Second Ship Design and Research Institute, Wuhan 430205, China
Xuzhi Zhou: School of Power and Energy, Northwestern Polytechnical University, Xi’an 710072, China
Tao Liu: School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
Yu Wang: School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China
Hui Wang: School of Aeronautics, Northwestern Polytechnical University, Xi’an 710072, China

Energies, 2023, vol. 16, issue 3, 1-12

Abstract: In many applications, such as the miniaturization and cooling of high-power electronics in aerospace, a new thermal management solution is needed, and metal foam radiators may be a valuable solution. In this work, X-ray scanning was applied to obtain the original structure of the metal foam. The real structure calculation model of the metal foam was obtained through a series of modeling, and high-precision numerical simulation was built to study heat and mass transfer in the original structure and homogeneous substitution model for three-dimensional porous metal foam. The distribution of velocity, pressure and temperature field is investigated. The results show that the heat transfer characteristics increase and flow resistance decreases with an increase in the Reynolds number. The heat transfer performance and flow resistance increase with the decrease of porosity. The porous media homogenization model can be consistent with the original real calculation results of metal foam by using appropriate values of resistance coefficient and porosity. The variation of resistance coefficient and porosity with the working condition in the porous homogenization model is identified.

Keywords: metal foams; X-ray inspection; porous reconstruction; numerical simulation; homogeneous model (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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