用矩形、四面体和正六面体单元计算非稳定温度场

来源期刊：中南大学学报(自然科学版)1982年第1期

论文作者：李克敌 王润富

文章页码：91 - 97

关键词：非稳定温度场； 四面体单元； 正六面体； 单元计算； 有限单元法； 矩形单元； 六面体单元； 计算公式； 温度模式； 精确解

摘    要：本文给出了用矩形、四面体和正六面体单元计算平面和空闻非稳定温度场的有限单元法计算公式;提供了在 TQ—6机(655机)上计算(用 BCY 语言)一维散热问题的算例,其结果与精确解十分接近。

Abstract: On the basis of heat balance principle of finite subfields,the finite element computing formulas by rectangular,tetrahedron and right parallele- piped elements respectively for unsteady temperature fields have been deri- ved in this article.The rate of variation of temperature T with respect to time t was obtained by adapting parabolic formula of backwards finite difference.According to the formulas in this article,by using the BCY language,the comuting programs have been compiled and the examples have been counted by TQ-6(655)computer.The results approached nearly to the exact solutions Hence,the formulas and programs might be offered as a reference to production practice.