计算物理 ›› 1991, Vol. 8 ›› Issue (4): 428-436.

• 论文 • 上一篇    下一篇

轴对称回转体瞬态温度场边界元分析

朱德书, 姚寿广   

  1. 镇江船舶学院动力系, 镇江市 212003
  • 收稿日期:1991-01-19 修回日期:1991-07-31 出版日期:1991-12-25 发布日期:1991-12-25

THE BOUNDARY ELEMENT ANALYSIS OF AXISYMMETRIC TRANSIENT HEAT CONDUCTION PROBLEM

Yao Shuoguang, Zhu Deshu   

  1. Zhenjiang Shipbuilding Institute
  • Received:1991-01-19 Revised:1991-07-31 Online:1991-12-25 Published:1991-12-25

摘要: 本文从三维瞬态势问题的边界积分方程及基本解出发,推导出轴对称势问题的边界积分方程及基本解,然后离散形成边界元方程,在此基础上对若干瞬态温度场数值例进行了分析计算,结果表明推导出的方法是可行的,并具有较高的精度和稳定性,能应用于工程中复杂的轴对称回转体的瞬态温度场分析。

关键词: 边界元方法, 瞬态热传, 轴对称

Abstract: In this paper, the boundary integral equation and the fundamental solution of axisymmetric transient heat conducation problem are derived from the boundary integral equation and fundamental solution of three dimension transient potential problem, and given in discretization form of the boundary element equation. On this basis, several axisymmetric thermal problems with different boundary conditions are calculated. Obtained results show that the method formed in this pape is reliable, and have good accuracy and good stability. It can be used to analyze the temperature field of axisymmetric body in engineering.

Key words: boundary element method, transient heat conduction, axisymmetric problem