Numerical Solution of Seepage Problem Using Quad-Tree Based Triangular Finite Elements

Authors : B ALYAVUZ, Ö KOÇYİĞİT, T GÜLTOP

Pages : 43-56

View : 13 | Download : 5

Publication Date : 2009-03-01

Article Type : Research Paper

Abstract :A triangular mesh based on the quad-tree grid is applied in the finite element solution of seepage flow under a sheet pile. After obtaining the quad-tree grid, cells are directly transformed into triangles by dividing a cell into four to eight triangles. Cells at the boundaries are turned into triangles using the Delaunay criterion for cell corner nodes and intersection nodes. Different mesh arrangements are considered in order to compare the flow characteristics with changing mesh size. Mesh patterns and results from finite element method are presented graphically for two test cases
Keywords : Seepage, quad tree grid, finite element method, triangulation