MULTI-SCALE ANALYSIS METHOD FOR COMBINED CONDUCTION-RADIATION HEAT TRANSFER OF PERIODIC COMPOSITES

摘要：

A Multi-scale analysis metuod is developed for the Rosseland equation,the most common model for the cotnbined conduction-radiation heat transfer.This equation is strongly nonlinear and the composites bring forth rapidly oscillating coefficients.Under some physical conditions,we prove the existence,uniqueness and the estimation of the maximum and lower bound.We first define the asymptotic expansion formulas.Then the effective coefficients and predictor- corrector finite element algorithms are obtained.Numerical results compared with both fine mesh and volume-averaged method show that it can be applied to predict the meso-scale thermal behavior of periodic composites with good accuracy.

关键词： combined conduction-radiation heat transfer Rosseland model Multi-scale analysis periodic composites

作者: Q.F.Zhang J.Z.Cui

作者单位: Institute of Computational Mathematics and Science-Engineering Computing,Academy of Mathematics and System Sciences,CAS,Beijing 100190,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 461-464

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）