摘要
本文通过适当变换，将考虑铸坯相变潜热影响的三维稳态非线性温度场问题，化成等效的二维瞬态非线性问题来求解，并用等效比热代替相变影响，给出了有限元计算公式，并对相变区作了精确仔细的处理．
In this paper,the problem of 3-D steady heat conduction including the influ-ence of phase change on billets is turned into the 2-D、ransient problem by a suita- ble transformation technique. The effective specific heat has been employed to substitute for the effect of the phase change. The computational formulation of finite element has been presented.And the careful disposal of the phase change region has also been given.
出处
《应用数学和力学》
EI
CSCD
北大核心
1994年第2期105-113,共9页
Applied Mathematics and Mechanics
基金
国家自然科学基金
关键词
相变
温度场
连续浇铸
铸坯
continuous casting, phase change,temperature field
