Parallelized 3D CSEM modeling using edge-based finite element with total field formulation and unstructured mesh

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• 作者：Hongzhu Cai^a ; ^b ; ^{caihongzhu@hotmail.com} ; Xiangyun Hu^c ; ^{xyhu@cug.edu.cn} ; Jianhui Li^c ; ^{ljhiiicumt@126.com} ; Masashi Endo^b ; ^{masashi@technoimaging.com} ; Bin Xiong^d ; ^{xiongbin@msn.com}
• 关键词：Geophysical electromagnetics ; Conductivity anisotropy ; Finite element ; Total field formulation ; Multifrontal solver
• 刊名：Computers & Geosciences
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：99
• 期：Complete
• 页码：125-134
• 全文大小：1780 K
• 卷排序：99

文摘

This paper develops an edge-based finite element method for 3D CSEM modeling. The algorithm is capable of dealing with anisotropic conductivity. We adopt a total field formulation and propose a new advanced boundary condition. We use a parallelized multifrontal method to solve the system of equations. The developed method is effective in modeling complex geometry such as bathymetry.