摘要
三维有限元渗流分析时采用的固定网格法中为丢弃单元法近年才提出的。根据丢弃单元法的思想编制了相应的计算机程序,运用此程序进行算例分析,分析结果表明,计算值与试验结果基本吻合。采用丢弃单元法来决定渗流区域自由表面位置,弥补了传统固定网格法之不足,保证了计算结果的收敛性和精确性。可为类似研究提供参考。
This paper deseribes the discarding element method of 3D finite element seepage analysis, established corresponding computer program SYSDQ according to the eoncept of discarding element method, and uses this program to carry out the analysis of one example. The analysis results showed that the calculation results basically tally with the test resuhs. The discarding element method to determine the free surface location could make up insufficiency of the traditional fixed grid method and eould ensure the convergence and aeeuracy of calculation results, which eould be used for reference for the similar researches.
出处
《水力发电》
北大核心
2009年第3期26-28,共3页
Water Power
基金
新疆水利水电工程重点学科基金资助项目(XJZDXK-2002-10-05)
关键词
有限元
渗流分析
固定网格法
丢弃单元法
自由面
finite element
seepage analysis
fixed grid method
discarding element method
free surface
