Volume 28 Issue 11
Nov.  2013
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CHEN Ti, LIU Wei-dong, SUN Ming-bo, FAN Xiao-qiang, LIANG Jian-han. Hybrid LES/RANS simulation of transverse sonic injectionin supersonic turbulent boundary layer[J]. Journal of Aerospace Power, 2013, 28(11): 2536-2542.
Citation: CHEN Ti, LIU Wei-dong, SUN Ming-bo, FAN Xiao-qiang, LIANG Jian-han. Hybrid LES/RANS simulation of transverse sonic injectionin supersonic turbulent boundary layer[J]. Journal of Aerospace Power, 2013, 28(11): 2536-2542.

Hybrid LES/RANS simulation of transverse sonic injectionin supersonic turbulent boundary layer

  • Received Date: 2012-11-24
  • Publish Date: 2013-11-28
  • A hybrid large eddy simulation/Reynolds-averaged Navier-Stokes (LES/RANS) method was tested by computing transverse sonic injection in supersonic turbulent boundary layer. The method combined two-equation k-ω SST (shear stress transport) turbulence model and a mixed-scale sub-grid scale model for turbulence closure depending on wall distance and a blending function of local turbulent parameters. The results show that the hybrid method can capture the unsteady large scale structures of the jet/turbulent boundary-layer interaction. Also, it provides better predictions of separation region length, wall static pressure peak value and static pressure distribution in the expansion regions than the RANS method.

     

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