教学讨论

基于保角映射的拉普拉斯方程降维法在求解温度场中的应用

  • 殷勇 ,
  • 王福谦
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  • 西南交通大学希望学院基础部,四川成都610400
殷勇( 1969—) ,男,四川成都人,西南交通大学希望学院基础部副教授,博士,主要从事大学数学和大

收稿日期: 2017-06-07

  修回日期: 2017-11-08

  网络出版日期: 2018-06-20

Application of reduced dimension method of Laplace equation based on conformal mapping in solving temperature field

  • YIN Yong ,
  • WANG Fu-qian
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  • Department of Basic Courses Teaching,Southwest Jiaotong University Hope College,Chengdu,Sichuan 610400,China

Received date: 2017-06-07

  Revised date: 2017-11-08

  Online published: 2018-06-20

摘要

将保角映射用于温度场问题的求解,通过变换函数将求解区域变换为带形域或一端绝热的半无限带形域,从而把 二维温度函数降为一维函数,在此基础上方便地求解拉普拉斯方程的边值问题,给出其温度分布函数,并利用软件MATLAB 绘制出等温线图.

本文引用格式

殷勇 , 王福谦 . 基于保角映射的拉普拉斯方程降维法在求解温度场中的应用[J]. 大学物理, 2018 , 37(6) : 13 -15 . DOI: 10.16854 /j.cnki.1000-0712.170335

Abstract

The temperature field problem is solved by conformal mapping,the solution domain is transformed into a band domain or a semi-infinite band with an adiabatic boundary by the transformation function. Thus,the two-dimensional temperature function is reduced to a one-dimensional function,then the boundary value problem of the Laplace equation is solved expediently,and its temperature distribution function is given,and the isothermal map is drawn by software MATLAB.
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