C226 デルタ翼の高迎角剥離流れに対する LES によるアプローチ

概要

論文の詳細を見る
It is very important for advanced aircraft design to numerically predict high angle of attack separated flow phenomenon such as vortex breakdown, and so we newly incorporate LES (Large Eddy Simulation) code into CASPER (Computational Aerodynamics System for Performance Evaluation and Research), developed by TRDI-JDA in 1998. To validate this code, transonic, separated and high angle of attack flows around an AFWAL65゜ delta wing configuration are computed using the CASPER. Also, the LES results by RNG SGS (Sub Grid Scale) model are quantitatively compared to RANS (Reynolds-Averaged Navier-Stokes) results by Baldwin-Lomax algebraic model and experiments. Consequently the LES results agree better with experiments than the RANS results and predict well the position of primary vortex breakdown over a wing upper surface.
日本流体力学会の論文
2001-07-31