Evaluation of the SST-SAS model for prediction of separated flow inside turbine internal cooling passages
Zacharzewski, Piotr and Simmons, Kathy and Jefferson-Loveday, Richard and Capone, Luigi (2016) Evaluation of the SST-SAS model for prediction of separated flow inside turbine internal cooling passages. In: ASME 2016 Turbo Expo, 13-17 Jun 2016, Seoul, South Korea.
The flow and heat transfer over a three-dimensional axisym-metric hill and rectangular ribbed duct is computed in order to evaluate the Shear Stress Transport - Scale Adaptive Simulation (SST-SAS) turbulence model. The study presented here is rele¬vant to turbine blade internal cooling passages and the aim is to establish whether SAS-SST is a viable alternative to other turbulence models for computations of such flows. The model investigated is based on Menter‘s modification to Rotta‘s k-kL model and comparison is made against experimental data as well as other models including some with scale resolving capability, such as LES, DES & hybrid LES-RANS.
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