TY - JOUR T1 - Second-Order Two-Scale Analysis Method for the Heat Conductive Problem with Radiation Boundary Condition in Periodical Porous Domain AU - Qiang Ma & Junzhi Cui JO - Communications in Computational Physics VL - 4 SP - 1027 EP - 1057 PY - 2013 DA - 2013/10 SN - 14 DO - http://doi.org/10.4208/cicp.290612.180113a UR - https://global-sci.org/intro/article_detail/cicp/7191.html KW - AB -
In this paper a second-order two-scale (SOTS) analysis method is developed for a static heat conductive problem in a periodical porous domain with radiation boundary condition on the surfaces of cavities. By using asymptotic expansion for the temperature field and a proper regularity assumption on the macroscopic scale, the cell problem, effective material coefficients, homogenization problem, first-order correctors and second-order correctors are obtained successively. The characteristics of the asymptotic model is the coupling of the cell problems with the homogenization temperature field due to the nonlinearity and nonlocality of the radiation boundary condition. The error estimation is also obtained for the original solution and the SOTS's approximation solution. Finally the corresponding finite element algorithms are developed and a simple numerical example is presented.