Computation of Several Turbulent Flows with the Des-Sa Model
Due to the high computational cost, well-resolved large-eddy simulation (LES) of wall-bounded turbulent flows at very high Reynolds number is still difficult. To deal with this issue, Detached-eddy simulation (DES) is used in engineering applications. In this study, several turbulent flows are computed with DES based on Spalart-Allmaras (SA) model. The performance of the DES-SA model is validated in fully developed turbulent channel flow, turbulent flow around a NACA0012 airfoil and turbulent flow in a centrifugal pump. In the channel flow, Delayed DEs (DDES), which is the update version of DES, is also tested. The advantages and disadvantages of the DESSA model are summarized. Possible approaches to improve the DES-SA model are discussed.
detached-eddy simulation spalart-allmaras model validation
Yang Guo Chisachi Kato Yoshinobu Yamade Hong Wang
Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, J Institute of Nuclear and New Energy Technology, Tsinghua University, Tsinghua Garden, Haidian Distri
国际会议
The Fourth International Symposium on Fluid Machinery and Fluid Engineering(第四届流体机械与流体工程国际会议)
北京
英文
206-214
2008-11-25（万方平台首次上网日期，不代表论文的发表时间）