Numerical results were compared with analytical solutions or benchmark results whenever possible. We then present two examples of magnetotellurics modeling in impact crater and geomagnetically induced current studies. In the effort presented here, we first discuss model validation for layered Earth geometries. The use of Comsol also reduces the need for sophisticated computer coding when solving partial differential equations such as Maxwell's equations. One of the advantages of Comsol modeling is its Graphical User Interface (GUI), which allows users to solve complex single or multi-physics problems in a meshed domain. The AC/DC module in Comsol can be used to solve Maxwell's equations in the quasi-static limit for modeling the magnetotelluric response. In this effort, we present magnetotelluric models of layered Earth, uplift structures, auroral electrojets, and geomagnetically induced currents in power-line skywires using the commercial finite-element package Comsol Multiphysics. COMSOL Multiphysics enables the modeler to combine arbitrary physics together, no matter how intricately they may be coupled, and to build powerful, flexible. While there are many different modeling techniques, the finite element method is most commonly used. For example, modeling a subsurface conductive body in terms of its conductivity, geometry and dipping angle would yield substantial information on the phase response and sensitivity in an MT survey. ![]() ![]() Numerical modeling of magnetotellurics is important for survey design, inversion, geological interpretation and many other aspects of geophysical studies. Methods : COMSOL Multiphysics was used to simulate VAN diffusion through the vitreous, where a Time Dependent and Transport of Diluted Species study was. Magnetotellurics is an electromagnetic geophysical method that has been widely used to study structures in Earth's subsurface.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |