非稳态热传导问题的边界元解法  

Boundary Element Method for Transient Heat Conduction

作　　者：田健[1] 张忠宁[1] 邱国俊[1] 赵雪光 

机构地区：[1]沈阳化工学院

出　　处：《沈阳化工学院学报》1998年第4期287-294,共8页Journal of Shenyang Institute of Chemical Technolgy

摘　　要：采用与时间无关的基本解和分离变量法，建立了非稳态热传导问题的积分方程、边界积分方程及它们的离散型方程．把复杂的域积分有效地转化为边界积分．给出了几种坐标函数和便于编程的计算格式，并在无参考程序的条件下编制出二维常单元和三维四边形单元的计算程序．The integral equation,boundary integral equation and their discrete equations for transient heat conduction are developed by using time independent foundamental solutions and variable seperating methods.The domain integrals are converted to the equivalent boundary integrals and effective coordinate functions are offered.At last,a fortran program is designed for two and three dimentional element to solve a example successfully.

关 键 词：边界单元法 非稳态热传导 分离变量法 热传导 

分 类 号：O642[理学—物理化学] TQ021.4[理学—化学]