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Volume 38 Issue 10
Oct.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  38(10): 1384-1388.
Zhou Dagao, Liu Yangwei, Wen Xiaoqing, et al. Modification of SA model for predicting airfoil flow separation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(10): 1384-1388. (in Chinese)
Citation: Zhou Dagao, Liu Yangwei, Wen Xiaoqing, et al. Modification of SA model for predicting airfoil flow separation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(10): 1384-1388. (in Chinese)
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Modification of SA model for predicting airfoil flow separation

  • School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191

  • Received Date: 28 Jun 2011
  • Publish Date: 30 Oct 2012
    Abstract
  • Two-dimensional numerical simulation of airfoil S825 with Spalart-Allmaras(SA) turbulent model was presented. The simulation results were compared with the experiment results. As SA turbulent model could not simulate the flow separation accurately at the rear region of the airfoil, the strongly non-equilibrium turbulence transport nature in the separate region was analyzed. The non-equilibrium turbulence transport nature was closely related to the constant Cb1 in SA model. A method of modifying the constant Cb1 was adopted in SA model, and the simulation results show that the method simulates the flow separation more accurately.

     

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    • References(6)
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