摘要
用边界元方法计算复合保温的地下直埋热力管道保温材料和土壤温度场。管道周围的土壤是半无限域,应用半无限域格林函数的基本解建立边界方程时,无需人为划定边界。在保温层内则采用无限域的基本解。计算方法可用于复合保温结构的优化设计。
The earth around the pipe is semi-infinite region.By selecting the fundamental solutio n of Green's func-tion of the semi-infinite area,the problem was solved effectively without artificially delimiting the boundary in the earth.The fundamental ideas of the boundary element method are presented briefly and two instances are computed.The results show that boundary element method is an effective and simple numerical method in resolving semi-infinite problems.
出处
《节能》
2002年第1期12-14,共3页
Energy Conservation
