TY - JOUR
T1 - Simple improvements in the SST-DES formulation for mild aerofoil trailing-edge separation
AU - Wang, Xiangyu
AU - Li, Dong
N1 - Publisher Copyright:
© Springer International Publishing Switzerland 2015.
PY - 2015
Y1 - 2015
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84928593982&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-15141-0_17
DO - 10.1007/978-3-319-15141-0_17
M3 - 文章
AN - SCOPUS:84928593982
SN - 1612-2909
VL - 130
SP - 215
EP - 225
JO - Notes on Numerical Fluid Mechanics and Multidisciplinary Design
JF - Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ER -