Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Three-Dimensional Numerical Visualization And Simulation of Multiphysics in Point Source Dc Magnetometric Resistivity Method

Version 1 : Received: 8 December 2020 / Approved: 9 December 2020 / Online: 9 December 2020 (12:11:59 CET)

How to cite: Gao, W.; Zhou, L.; Yan, L. Three-Dimensional Numerical Visualization And Simulation of Multiphysics in Point Source Dc Magnetometric Resistivity Method. Preprints 2020, 2020120223 (doi: 10.20944/preprints202012.0223.v1). Gao, W.; Zhou, L.; Yan, L. Three-Dimensional Numerical Visualization And Simulation of Multiphysics in Point Source Dc Magnetometric Resistivity Method. Preprints 2020, 2020120223 (doi: 10.20944/preprints202012.0223.v1).

Abstract

Magnetometric Resistivity(MMR) Method, which can use the power supply method of the traditional apparent resistivity method to measure the magnetic field. At present, the application research abroad is relatively extensive, but the domestic(China) research on the application of the MMR method is very few, and it is not even well-known. This paper is based on the MMR theoretical method under the point source DC condition, combined with the abnormal potential method and the modified Biot-Savart law, and using the three-dimensional numerical calculation method of the finite difference method to calculate the abnormal potential field, electric field, and magnetic field on the matlab2018a platform. Calculate, realize the multi-physics simulation in the electromagnetic field through Matlab platform programming, and verify the correctness of the algorithm by the spherical anomaly model with an analytical solution. Through the visual simulation of the three-dimensional data volume of the multi-physics field in the electromagnetic field, we can better understand the response mechanism of the electromagnetic field under DC conditions and grasp their three-dimensional spatial distribution rules. It is hoped that the research in this article can help the research of MMR Personnel better use this method for exploration.

Subject Areas

MMR; abnormal potential method; modified Biot-Savart law; finite difference method; three-dimensional visualization simulation

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