Stability of supersonic boundary layer under the influence of heavy gas injection: experimental study

V. I. Lysenko, B. V. Smorodsky, Yu G. Ermolaev, A. D. Kosinov

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Experiments were performed on the influence of distributed injection of a heavy gas (elegas SF6) into the near-wall region of the supersonic (freestream Mach number М = 2) boundary layer on its stability in relation to natural disturbances. Heavy gas injection for the case of linear development of disturbance field results in boundary layer stabilization. It was experimentally proved that the elegas injection can suppress disturbances at the frequencies higher than 15 kHz for the tested range of the streamwise coordinate.

Original languageEnglish
Pages (from-to)183-190
Number of pages8
JournalThermophysics and Aeromechanics
Volume25
Issue number2
DOIs
Publication statusPublished - 1 Mar 2018
Externally publishedYes

Keywords

  • compressible boundary layer
  • heavy gas
  • hydrodynamic stability
  • injection
  • permeable surface
  • PERMEABILITY
  • STABILIZATION
  • ROUGHNESS

Fingerprint

Dive into the research topics of 'Stability of supersonic boundary layer under the influence of heavy gas injection: experimental study'. Together they form a unique fingerprint.

Cite this