渗流自由面计算的边界元法  

Boundary Element Method for Seepage Analysis with Free Surface

作　　者：闵兴鑫[1] 陈江[1] 张少杰[1] 

机构地区：[1]四川大学水利水电学院,四川成都610065

出　　处：《水电能源科学》2008年第6期73-75,共3页Water Resources and Power

摘　　要：用边界元法求解渗流自由面需预先设定自由面的初始位置。先对自由面初始位置进行优化,以便得到合理的计算网格,再按常规方法迭代求解。计算结果表明,与有限元法相比计算精度较高,具有更好的收敛性与更高的计算效率。The initial position of free surface needs to be set in seepage free surface analysis with boundary element method. First, suitable computational grid was obtained by optimizing initial position of free surface, then, the result was obtained by traditional iterative algorithm. The homogenous rectangle dam was computed by this method and finite element method separately. This result shows that this method has property of great precision, better convergence and higher computational efficiency comparing with finite element method.

关 键 词：渗流 自由面 边界元法 有限元法 

分 类 号：TV641[水利工程—水利水电工程] P641.2[天文地球—地质矿产勘探]