摘要
对于温度场随时间变化的非稳态导热问题,集总参数法是最简单的求解方法,但是这一方法只适用于Bi<1的条件.拓展传统的非稳态导热集总参数方法,提出在0<Bi<∞条件下,圆球物体非稳态导热平均温度集总参数分析方法,建立了平均温度瞬态响应关系式.讨论球体平均取值位置,并进行数值分析,给出了适于工程应用的辅助参数表,比通用的Heisler图解法更为简洁方便.
Lumped parameter analysis method is the most convenient way to solute unsteady-state. But the method sets a limit on Bi 〈 1. The paper extends the traditional lumped parameter analysis method of unsteady-state. Under the convection boundary 0 〈 Bi 〈 ∞, a mean temperature lumped parameter analysis method is studied and the mean temperature response formula has been established. Taking a sphere as an example, the paper presents the regular pattern of the transient mean temperature value and discusses the numerical analysis. The method for solving the unsteady-state conduction in the paper is more practical than the M.P. Heisler charts.
出处
《大连交通大学学报》
CAS
2009年第1期91-93,101,共4页
Journal of Dalian Jiaotong University
基金
辽宁省教育厅高等学校科学研究计划资助项目(2004F104)
关键词
非稳态导热
集总参数方法
温度瞬态响应
unsteady-state conduction
lumped parameter analysis method
transient mean temperature
作者简介
顾祥红（1968-），女，副教授，硕士E-mail：zhzhgxh@163.com
