Volume 27 Issue 1
Jan.  2012
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LI Wei, ZHANG Bo, ZHOU Min, LU Xin-gen, ZHU Jun-qaing. Boundary layer behaviors on an ultra-high-lift low-pressure turbine profile under unsteady wakes[J]. Journal of Aerospace Power, 2012, 27(1): 176-182.
Citation: LI Wei, ZHANG Bo, ZHOU Min, LU Xin-gen, ZHU Jun-qaing. Boundary layer behaviors on an ultra-high-lift low-pressure turbine profile under unsteady wakes[J]. Journal of Aerospace Power, 2012, 27(1): 176-182.

Boundary layer behaviors on an ultra-high-lift low-pressure turbine profile under unsteady wakes

  • Received Date: 2011-03-09
  • Rev Recd Date: 2011-07-14
  • Publish Date: 2012-01-28
  • An experimental investigation on unsteady boundary layer behaviors of the suction surface of an ultra-high-lift low pressure turbine profile under periodically unsteady wakes was conducted with the help of surface-mounted hot film,and the influence of the wake-boundary layer interaction on the boundary layer separation,transition and reattachment was analyzed in detail with space-time (S-T) diagrams of quasi-wall shear stress and statistical parameters.The experimental results show that the wake has a significant influence on the boundary layer of turbine profile and the separation has been remarkably suppressed despite the larger separation bubble on the suction surface of ultra-high-lift profile at low Reynolds number.

     

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