变时间步长热焓法求解伴有相变的热传导问题  

Numerical Calculation of the Heat Conduction Problem with Phase Change by Using Enthalpy Method with Varied Time Step

作　　者：陈越南[1] 潘武斌 杨晓清[1] 

机构地区：[1]浙江大学力学系

出　　处：《东南大学学报（自然科学版）》1989年第1期40-46,共7页Journal of Southeast University：Natural Science Edition

摘　　要：本文在有相变的热传导方程中引入热焓,提出了一种稳定收敛迅速的数值方法——变时间步长焓法,用该方法分析求解了平板以及小球颗拉在气流中的凝固过程,计算结果与积分解的结果十分吻合。In this paper the enthalpy is introduced in the thermal conduction equation with phase change and a numerical method, enthalpy method with varied time step, which is more stable and easier to converge than others is proposed. The condensing processes for a flat plate and a small sphere in the flow have been solved by using the method, the results obtained are in good agreement with the integral solution.

关 键 词：热传导 相变 热焓法 数值计算 

分 类 号：O551.3[理学—热学与物质分子运动论]