凝固传热数值解中潜热的等效

EQUIVALENCE FOR CRITICAL HEAT IN NUMERICAL SOLUTION OF SOLIDIFICATION HEAT TRANSFER

潜热的等效是求解凝固传热问题常用的一种数值处理形式。对等效对象的研究,不同的学者曾采用多种方法。本文提出了等效实体导数法,能准确地模拟潜热对温度分布的影响。该法计算机实施简便,算例表明,结果与实际基本符合。

Equivalence for critical heat is one of the numerical treatment commonly used solving questions of solidification heat transfer. Many authors have investigated the equivalent object using various method. The paper develops an equivalent substantial derivative method that can simulate influence that critical heat on the temperature field accurately. The method is simple in computer implementation. The example shows that results are well coincided with those in pract ice.