Volume 23 Issue 8
Aug.  2008
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MA Wei, WANG Dan-hua, LU Li-peng. Investigation on improving the capability of predicting separation of Spalart-Allmaras turbulence model[J]. Journal of Aerospace Power, 2008, 23(8): 1474-1479.
Citation: MA Wei, WANG Dan-hua, LU Li-peng. Investigation on improving the capability of predicting separation of Spalart-Allmaras turbulence model[J]. Journal of Aerospace Power, 2008, 23(8): 1474-1479.

Investigation on improving the capability of predicting separation of Spalart-Allmaras turbulence model

  • Received Date: 2007-08-01
  • Rev Recd Date: 2007-10-15
  • Publish Date: 2008-08-28
  • Two methods were applied to improve the capability of predicting separation of Spalart-Allmaras turbulence model.One was to improve the capability of predicting Reynolds normal stress based on the property of Spalart-Allmaras turbulence model,the other one was to calibrate the production coefficient based on the non-equilibrium of turbulence in separation region.The results show that: the first one contributes little to improving the capability of prediction separation of Spalart-Allmaras turbulence model,because the capability of predicting Reynolds normal stresses is not improved considerably;while the second one improves obviously the capability of prediction separation of Spalart-Allmaras turbulence model,because the capability of S-Amodel in capturing the non-equilibrium turbulence is improved notably.

     

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