Investigation of the effect of heavy gas injection into a supersonic boundary layer on laminar-turbulent transition

S. A. Gaponov, Yu G. Ermolaev, N. N. Zubkov, A. D. Kosinov, V. I. Lysenko, B. V. Smorodskii, A. A. Yatskikh

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The effect of distributed tangential injection of heavy SF6 gas into the wall zone of a boundary layer on the supersonic flow stability and laminar-turbulent transition is experimentally and theoretically investigated at the freestream Mach number M = 2. For the first time it is experimentally shown that in the case of this injection laminar-turbulent transition is downstream displaced.

Original languageEnglish
Pages (from-to)769-776
Number of pages8
JournalFluid Dynamics
Volume52
Issue number6
DOIs
Publication statusPublished - 1 Nov 2017
Externally publishedYes

Keywords

  • compressible boundary layer
  • hydrodynamic stability
  • injection
  • laminar-turbulent transition
  • permeable surface
  • PERMEABILITY
  • STABILITY
  • ROUGHNESS

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