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The Finite Element Numerical Modelling of 3D Magnetotelluric

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  • Ligang Cao
  • Yun Liu

Abstract

The ideal numerical simulation of 3D magnetotelluric was restricted by the methodology complexity and the time-consuming calculation. Boundary values, the variation of weighted residual equation, and the hexahedral mesh generation method of finite element are three major causes. A finite element method for 3D magnetotelluric numerical modeling is presented in this paper as a solution for the problem mentioned above. In this algorithm, a hexahedral element coefficient matrix for magnetoelluric finite method is developed, which solves large-scale equations using preconditioned conjugate gradient of the first-type boundary conditions. This algorithm is verified using the homogeneous model, and the positive landform model, as well as the low resistance anomaly model.

Suggested Citation

  • Ligang Cao & Yun Liu, 2014. "The Finite Element Numerical Modelling of 3D Magnetotelluric," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-9, August.
    • Handle: RePEc:hin:jnlmpe:890516
    DOI: 10.1155/2014/890516
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