LESとk-εモデルによる建物後流弱風域でのガス輸送構造の比較(風工学(2),一般講演)

概要

論文の詳細を見る
Flow and diffusion fields around a building were predicted by LES and Durbin type k-ε model. The prediction accuracy of the both models was assessed by comparing their results with those obtained by wind tunnel test. The results of LES showed good agreement with experimental data in terms of mean wind velocity, turbulence statistics and mean gas concentration, while the significant differences were observed between the results of the experiment and the Durbin type k-ε model concerning the flow and diffusion fields in the wake region behind the building. This is mainly due to the fact that the periodic motions caused by the vortex shedding were not reproduced by this model.
日本流体力学会の論文
2007-08-06