Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)
Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)
Institute of Aeronautical Technology, Japan Aerospace Exploration Agency (JAXA)
Ryoyu Systems Co., Ltd
DAIKO DENSHI TSUSHIN, LTD.
Research Center of Computational Mechanics, Inc.
出版者
日本航空宇宙学会
出版者（英）
The Japan Society for Aeronautical and Space Sciences
雑誌名
日本航空宇宙学会論文集
雑誌名(英)
Journal of the Japan Society for Aeronautical and Space Sciences
巻
63
号
3
ページ
96(20) - 105(29)
発行年
2015-06-05
抄録（英）
Although CFD tools are necessary for aerodynamic design, it is still time consuming and this is one of the big problems. In order to shorten the computational time, a fast CFD code “FaSTAR” has been developed. We combined two acceleration techniques. One is a convergence acceleration technique such as the multigrid method. A coarse-grid generation method using octree data of the Cartesian grid is proposed. This method is simple and it can generate high-quality coarse grids. The other is a programing technique such as data structure improvement and performance tuning. We demonstrate the high-speed performance of the code for aerodynamic computation of a standard aircraft model, NASA-CRM. The computational time is less than one hour using 10 million cells and 100 CPU cores. It is found that the multigrid method is beneficial for large-scale problems.
内容記述
形態: 図版あり
内容記述（英）
Physical characteristics: Original contains illustrations
高速な非構造格子流体ソルバFaSTARの開発
