2.5-D direct current resistivity forward modeling with unstructured mesh
Considering the requirement of achieving economically numerical method under a given accuracy, we implemented unstructured 2D triangular generation adopted from the commercial software ANSYS for 2.5-D direct current forward modeling. Through comparing the results obtained from three different kinds of meshes (unstructured triangles,traditional quadrilaterals and rectangle triangles), it is obvious that the unstructured mesh owns a much better performance than the others with nearly the same nodes (actually, unstructured mesh has less nodes). And also results showed surprising priority of unstructured mesh on fitting terrains and complex boundaries. Finally we did comparison for terrain correction. Our numerical results demonstrated that the algorithm of terrain correction has mostly eliminated influence caused by terrains. And the singularities only brought by local ore-bodies have been obtained successfully.
unstructured mesh 2.5 dimensional ANSYS Finite Element Method
TANG Jingtian WANG Feiyan
School of info-physics and Geomatics Engineering, Central South University, Changsha, China
国际会议
The 19th International Workshop on Electromagnetic Induction in the Earth(第十九届国际地球电磁感应学术研讨会)
北京
英文
509-513
2008-10-23（万方平台首次上网日期，不代表论文的发表时间）