NUMERICAL STUDY OF LARGE EDDY STRUCTURES SEPARATED FLOWS PASSING SILLS

摘要：

In this paper, the instantaneous evolution of eddy structures in the separated flow passing sills was studied by using large eddy simulation coupled with a dynamics subgrid medel. The typical flow behavior was discussed in details. It showed that there was the complexity of vortex structures in down-stream of a sill. The mean velocity and the reattachment length of mean flow fields were obtained by statistic method, which was in good agreement with the experiment data and the typical structure of separated flows passing sills was also done. The present research paves a way for the further study of turbulence control and has a high valuable engineering application.

关键词： large eddy simulation sill dynamics subgrid separated flow

作者: June Lu Lingling Wang

作者单位: The College of Water Conservancy and Hydropower Engineering Hohai University Nanjing 210098,China

会议类型: 国际会议

会议名称: 第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)

会议地点: 南京

会议语种:英文

页码: 1795-1799

在线出版日期: 2008-10-20（万方平台首次上网日期，不代表论文的发表时间）