Abstract
In the present paper, numerical scheme for compressible ideal MHD equation using HGA Method are presented. In recent numerical simulations, efficiency of grid generation and efficient use of limited computer resources are demanded. In the present paper, the kinds of cell, which have great effect on analysis accurate and efficiency, are paid attention to. Therefore in order to take advantages of both shape flexibility and computational efficiency Hybrid Grid which is composed of Triangle, which takes advantage of shape flexibility, and Quadrangle, which takes advantage of computational efficiency, are used. Moreover in order to calculate more efficiently, HGA Method included AMR (Adaptive Mesh Refinement) Method is used, which obtains higher resolutions by using fine grids only in the location where the change of the physical quantity is intense, based on Hybrid Grid.
