Stability of supersonic boundary layer on permeable surface

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Authors

  • S.A. Gaponov Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Russia
  • Yu.G. Ermolaev Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Russia
  • A.D. Kosinov Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Russia
  • V.I. Lysenko Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Russia
  • N.V. Semionov Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Russia
  • B.V. Smorodsky Khristianovich Institute of Theoretical and Applied Mechanics SB RAS, Russia

Abstract

In the present study we have performed combined theoretical and experimental investigation of the surface permeability influence on the linear stability of the supersonic flat-plate boundary layer at free-stream Mach number M = 2. Good quantitative agreement was obtained between the data calculated by the linear theory of stability and the data obtained in experiments with artificially generated disturbances performed on models with various porous inserts.

Keywords:

compressible boundary layer, laminar-turbulent transition, hydrodynamic stability, permeability