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

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