Finite Element Modeling of 2.5-D Tem Using Unstructured Meshes
详细信息
- 责任者：Zhao Xiaobo (Centrol South University ; School of Geoscience and Environmental Engineering ; Changsha 410083 ; China) ; Zhu Ziqiang
- 刊名：Computing Techniques for Geophysical and Geochemical Exploration
- 出版年：2011
- 卷期：33(5)
- 关键词：瞬变电磁法 ; transient electromagnetic methods ; 有限元法 ; finite element methods
- 页码：p.517-521
- 图表：illus., 1 table, 15 refs.
- 分类号：1600
- issnNo：ISSN1001-1749
- isbnNo：CN51-1242/P
摘要
In this paper,Delaunay triangulation method was used to realize unstructured triangular mesh generation of 2D model through programming,and the central loop transient electromagnetic method 2.5D finite element forward modeling program was completed.Compared with the previous results and under same accuracy condition,the number of grids and nodes of unstructured grid method is significantly reduced and computational efficient compared with the structured grid.By introducing the unstructured grid method to 2.5-D transient electromagnetic forward modeling,we realized the finite element numerical simulation of complex 2D geo-electric model and improved the existing finite element method’s range of applications.