Dynamic Mixed SGSモデルの適用 : Dynamic LESによる2次元角柱周辺流れの解析(第2報)
1997 年 62 巻 492 号 p. 57-62
詳細
1997 年 62 巻 492 号 p. 57-62
A turbulent vortex-shedding flow past a two-dimensional(2D) square cylinder at Re=2.2×10^4 is analyzed by Large Eddy Simulation(LES) using two types of dynamic Subgrid-scale(SGS) models, i.e., the Smagorinsky type and mixed type. Results given from the two dynamic SGS models are compared with those from the standard Smagorinsky model and the experiments conducted by Lyn et al. Two types of dynamic SGS model improve the accuracy of the predictions remarkably. In particular, the mixed type provides more accurate results than those given by the Smagorinsky type dynamic model.
