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| Three dimensional finite element simulation of wide field electromagnetic method |
WU Jian-Ping( ), ZHANG Chao(), CHEN Jian-Ping, YANG Xi, PEI Yun-Jun, ZHOU Qing-Dong |
| Jiangmen Power Supply Plant,China Southern Power Grid Limited Liability Company,Jiangmen 529000,China |
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Abstract Based on the Maxwell equations,the authors introduced the vector potential and scalar potential coupling equations,and used the finite element method to study the three-dimensional numerical simulation of WFEM.In a synthetic test,the correctness of this algorithm was verified by a uniform half-space model with analytical solutions.Then the detection depth of the WFEM was simulated using the anomalous bodies at two different depths.The numerical simulation results show that the WFEM don't affected by the near region of the field source and has the characteristics of large depth,it can provide theoretical and methodological support for deep earth resource exploration.
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Received: 22 April 2020
Published: 26 October 2020
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Corresponding Authors:
ZHANG Chao
E-mail: wjpskp@sina.com;278508878@qq.com
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Element subdivision
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Logarithmic superposition of numerical solution and analytical solution of surface Ex component
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Diagram of shallow geoelectric model(a) and observation system(b)
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Distribution map of wide field apparent resistivity on observation areas with different frequency of shallow geoelectric model
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Frequency combination profile with y=0 line of shallow geoelectric model
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Diagram of deep geoelectric model(a) and observation system(b) Sketch Map
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Distribution map of wide field apparent resistivity on observation areas with different frequency of deep geoelectric model
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Frequency combination profile with y=0 line of deep geoelectric model
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