Efficient Simulations of Conjugate Heat Transfer

摘要

Usually, the code of fluid flow and heat transfer is applied to pure fluid region; while in real physical flow, many obstacles are immersed in the fluid region or the fluid region is not regular. So many ways, such vacant proportion practice (VPP), large source practice (LSP) and viscosity coefficient practice (VCP), are used to deal with the coupling of solid-fluid region, i.e. the conjugate heat transfer. These methods are inefficient in these numerical simulations. The new way, taking into account that the iteration essence of SIMPLE method and directly involving the effects of solid into pressure-correction equation, is practiced and compared with above methods. A square cavity with an obstacle is presented. The results show the new way of coupling solid-fluid region is brief and efficient than other strategies in computational accuracy and efficiency.