摘要
在相变热传导的数值计算中，对潜热一直是作显式处理的，常常产生较大的偏差，严重时导致错误的结果。根据移动边界问题的理论，建立了线性互补方程，其中含有相变潜热与温度场两个耦联的未知向量。其解保证了两者之间的相互协调，且避免了大量的迭代计算。
The phase change problem of heat conduction is one of the moving boundary problems. In the numerical calculations for the phase change problem of heat conduction, the latent heat is all treated in explicit form up to now, so large deviations are often deduced in calculation results, and in some cases the results are led to wrong one. In point of this problem, a system of linear complementary equations are formulated based on the theory of moving boundary problem. In these equations established, two unknown coupling vectors of the phase change latent heat and the temperature field are included. The solution of these two unknown vectors and a large amount of iterative calculations are avoided.
出处
《大连理工大学学报》
EI
CAS
CSCD
北大核心
1992年第6期637-643,共7页
Journal of Dalian University of Technology
基金
"七五"科技攻关项目
关键词
潜热
热传导方程
线性
互补
相变
solidification
latent heat
heat conduction equations/linear complementary equation
