Application of Finite Volume Method with Unstructured Quadrilateral Mesh for Solving 2-D Magnetotelluric Modeling

Tanapon Khampichit, Weerachai Sarakorn

Abstract

In this paper, a solution to the 2-D magnetotelluric (MT) modeling with the finite volume (FV) method using alternative unstructured quadrilateral mesh is presented. The accuracy, efficiency, and reliability of our FV forward modeling are presented and compared to other numerical methods. The numerical results indicate that our FV method provide good accuracy when the appropriate mesh is incorporated. The reliability of developed FV scheme is also confirmed with both analytical values and COMMEMI projects. In addition, our developed FV codes incorporating with unstructured quadrilateral mesh show the useful and powerful features such as handling the irregular and complex subregions.