Finite Element Modeling of Controlled-source Electromagnetic Induction for 3-D Resistivity Distribution

被引：0
|
作者：
Zhang Jifeng [1 ]
Li Xiu [1 ]
Feng Bing [1 ]
机构：
[1] Changan Univ, Coll Geol Engn & Geomat, Xian 710054, Shaanxi, Peoples R China
来源：
NEAR-SURFACE GEOPHYSICS AND ENVIRONMENT PROTECTION | 2012年
关键词：
electromagnetic sounding; finite element; numerical modeling; CSMT;
D O I：
暂无
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
A scalar finite element algorithm for modeling frequency domain controlled-source electromagnetic (CSEM) responses over 3D structures was presented. The scheme was based on the curl-curl equation of the electric field E. Under quasi-static conditions, the closed expressions for the far field in the air and the earth were taken as the outer boundary conditions and pseudo-delta functions were used to remove the singularity of the dipole source. High-performance solver PETSc is used to solve the large scale complex linear equations effectively. Several numerical tests conformed the validity of this algorithm.
引用
收藏
页码：53 / 56
页数：4
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