标题：Analysis of stress jump condition at a fluid/porous interface
作者：Liu, Fang ;Chen, Baoming ;Wang, Li
作者机构：[Liu, Fang ] School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China;[Liu, Fang ;Chen, Baoming ;Wang, Li ] School o 更多
会议名称：ASME 2009 Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
会议日期：18 December 2009 through 21 December 2009
来源：Proceedings of the ASME Micro/Nanoscale Heat and Mass Transfer International Conference 2009, MNHMT2009
关键词：Fluid/porous interface; Heterogeneous interface region; Natural convection; Porous medium
摘要：Natural convection in partially porous cavities driven by buoyancy force has been given the attention in this paper. Two-domain model with continuous or discontinuous interfacial Conditions and One-equation model with heterogeneous interface region were analyzed. FEM with weak constraint Condition was applied to solve the differential governing equations. The influence of stress jump conditions at fluid/porous interface on flow and heat transfer in two-domain model was compared with that of heterogeneous interface fegion in one-domain model. Numerical results showed that Vertical velocity was different near the interface for continuous and discontinuous interfacial conditions. And variation of porosity and permeability in the interface region also lead to difference of vertical velocity. The influence on Nusselt number was slight. Copyright © 2009 by ASME.