期刊
MECHANICS RESEARCH COMMUNICATIONS
卷 43, 期 -, 页码 96-100出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.mechrescom.2012.03.007
关键词
Centroidal Voronoi tessellations (CVTs); Simulated annealing; Element-free Galerkin method (EFG); Meshless method; Seepage
类别
资金
- Natural Science Foundation of China [51039003]
- National Basic Research Program of China (973 Program) [2010CB732103]
- State Key Laboratory of Hydroscience and Engineering [2012-KY-02]
Node generation plays an important role in meshless methods for seepage analysis with a free surface. A probabilistic algorithm based on a combination of simulated annealing and the generalized probabilistic Lloyd's method, which is related to centroidal Voronoi tessellations (CVTs), is used in seepage analyses with the element-free Galerkin method (EFG). The applications in this paper involve analyzing steady seepage in a rectangular dam, a dam with an inclined slope surface, and a dam with a horizontal drain. The results show that the algorithm can easily fit and update the changeable free surface, and obtains higher-quality node sets, particularly when simulating physical domains with complex geometrical boundaries. (C) 2012 Elsevier Ltd. All rights reserved.
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