浅析有限单元法和边界单元法的对比

Finite Elements method and Boundary Elements method are the most conventional methods to resolve the issue of Geophysical forward. In the paper, we derive the theoretical value using upward extension of magnetic field in the level topography as an example and its analytic formula. We calculate upward extension of the magnetic field value under the same conditions by using Finite Elements method and Boundary Elements method respectively, and using the same mesh & boundary conditions to compare the accuracy of finite elements method & the boundary elements method. Also, the two methods of numerical simulation algorithm, calculation accuracy, computational efficiency, as well as the application of conditions were compared and analyzed Respectively.