43rd Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2011 (July 7-8, 2011. Waseda University, International Conference Center), Tokyo Japan
抄録（英）
An automatic hexahedral grid generator, HexaGnd, and a fast flow solver, FaSTAR, are developed in the Digital/Analog Hybrid Wind Tunnel project. In this paper, we mention some improvements of the HexaGrid and FaSTAR. The effects of discretization and reconstruction method on drag prediction accuracy are discussed. It is found that the cell-vertex method is more accurate than the usual cell-center method. However, the cell-center method can be improved if the reconstruction method is modified. In addition, the multigrid agglomeration method is modified so that the grid can become coarse globally. The convergence of modified grid is approximately four times faster than that of previous grid.
内容記述
形態: カラー図版あり
内容記述（英）
Physical characteristics: Original contains color illustrations
HexaGrid/FaSTARを用いたデジタル風洞の開発
65207027.pdf
(1.04MB)
