Simple improvements in the SST-DES formulation for mild aerofoil trailing-edge separation

Xiangyu Wang, Dong Li

科研成果: 期刊稿件文章同行评审

摘要

We present an improved Detached Eddy Simulation (DES) based on the SST turbulence model, WAD SST-DES, for accelerating the Large Eddy Simulation (LES) development in mixing layers. Similar to WAD-DES based on the SA turbulence model proposed byWang and Qin, the formulation of Yoshizawa’s k-equationlike subgrid model in LES zones in the original SST-DES is rewritten as a standard one to end the previous turbulence transfer in the interface between the RANS and LES regions, and the numerical results for flow around A-aerofoil show that these improvements efficiently weaken the influence of the grey area while delaying the RANS at the boundary, in a manner similar to DDES. In addition, we discuss the influence of several coefficients in the improved SST-DES; these coefficients may play a very important role in the final simulation results.

源语言英语
页(从-至)215-225
页数11
期刊Notes on Numerical Fluid Mechanics and Multidisciplinary Design
130
DOI
出版状态已出版 - 2015

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