Behavior of SST-SAS for mild airfoil trailing-edge separation

Xiangyu Wang, Dong Li

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

The Scale-Adaptive Simulation (SAS) based on SST turbulence model is more and more popular as a new hybrid RANS/LES method. The flow around AS239 airfoil at the maximum lift condition is simulated by SST-SAS to test its behavior in the mild separation. Compared with results from SST-DES and SST-DDES, SST-SAS on one hand overcomes the Grid Induced Separation (GIS) near the boundary like the delay of RANS in SST-DDES and on the other hand, it decreases the grey area in the wake and gets clearer vortexes and more accurate velocity profile than those obtainable with SST-DDES.

Original languageEnglish
Pages (from-to)337-340
Number of pages4
JournalXibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University
Volume32
Issue number3
StatePublished - Jun 2014

Keywords

  • Airfoils
  • Computer simulation
  • Drag coefficient
  • Flow separation
  • Grey area
  • Grid Induced Separation (GIS)
  • Large eddy simulation
  • Large Eddy Simulation (LES)
  • Lift
  • Navier Stokes equations
  • Pressure distribution
  • SST-DDES
  • SST-DES
  • SST-SAS
  • Turbulence models
  • Velocity distribution
  • Vortex flow
  • Wakes

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