摘要
瞬态温度场的热平衡积分解法是一种近似解法.这种方法灵活、简单.由于题解不象导热微分方程解那样具有解的唯一性,所以解题者可着力探求以最简单的函数作为温度场的近似解.本文中所提供的题解四则是典型瞬态温度场的热平衡积分解,它们的温度场表达式都是由初等函数组成.计算温度值时速度之快是分析解和差分解无法相比的,并有较好的计算精度.所以这些函数解有助于工程人员,了解温度场的变化过程和温度分布规律.藉以评定工程传热方案,正确选择结构参数和改善设计的工况.
Heat balance integration is one of the approximate method for solving intant-aneous temperiture distribution.It is simple and versatile. It can be used to find the solution with the simplest form of function.The approximate solution of four typical in tantaneous temperature distributions are illustrated in tnis paper.All these solutions are composed of primary funtions. The time in calcula-tion will be much shorter than that of other analytical method and finite difference method and the acouracy of calculation is also sufficiently high. Therefor those solntions are quite adequate for engineering application.
出处
《上海第二工业大学学报》
1990年第1期63-71,共9页
Journal of Shanghai Polytechnic University
关键词
温度场
瞬态
恒热流
边界
热平衡
intantaneous temperature field boundary of constant heat flow
