具有表面辐射的导热和对流耦合问题的数值计算方法

A NUMERICAL METHOD FOR COUPLED CONDUCTION AND CONVECTION HEAT TRANSFER WITH SURFACE RADIATION

本文发展了一个处理具有表面辐射的导热和对流耦合问题的数值计算方法,并应用此方法对一个实际问题进行了温度场的计算,得到了与实验测定值相一致的结果。计算结果与实验测定值的比较表明,忽略该问题的表面辐射对于换热的影响将带来较大的误差。

This paper proposes a numerical method for solving coupled conduction and convection heat trans- fer problems with surface radiation within solution domaine. An engineering problem is solved by the method. The computed results are in good agreement with experimental data. It can be seen by com- parison that when the radiation heat transfer between the surfaces is neglected, there is a great differ- ence between the computed and experimental results for the problem.