HGA法を用いた複雑形状周りの衝撃波解析

概要

論文の詳細を見る
In the present paper, we propose a new method which is called HGA (Hybrid Grid Adaptation) method. It is very important to generate grids easily around complex objects in recent numerical simulations, in order to use limited computer resources efficiently. In the present paper, the kinds of grid, which have great effect on analysis accuracy and efficiency, are paid attention to. In twodimensional problems, we usually use only triangular and quadrilateral grid. The former, which has an advantage of freedom, can apply to complex abjects better than the latter. The latter can analyze flow problems more efficiently than the former. So we used hybrid grids to take the advantage of both freedom and efficiency. And we tried to analyze them more efficiently, using HGA method included AGR (Adaptive Grid Refinement) method, which obtains higher resolutions by collecting fine grids only in the location where the change of the physical quantity is intense, based on Hybrid Grid.
一般社団法人日本機械学会の論文
2002-06-25