Impact analysis of varying strength counter-flow jet ejection on a blunt shaped body in a supersonic flow

Y. Zheng, N. A. Ahmed, W. Zhang

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

Formation of a strong bow shock wave ahead of the blunt shaped body in a supersonic flow gives rise to rapid increase in temperature and pressure and reduction in velocity that causes substantial heat stress built up and may lead to structural damage of the body with disastrous consequences. At the University of New South Wales, the Aerodynamics Research Group has been exploring various methods of active flow control technologies for application to subsonic and supersonic flows. In this paper, the effects of deployment of counter-flow jet ejection as an active flow control method on the various flow field up stream of a blunt shaped body placed in a supersonic flow is examined. The concept of the counter-flow jet ejection relies on imparting sufficient momentum through its stagnation point to the flow field upstream of the body to cool the flow field around the body.

Original languageEnglish
Pages (from-to)111-129
Number of pages19
JournalAdvances and Applications in Fluid Mechanics
Volume12
Issue number2
Publication statusPublished - Oct 2012
Externally publishedYes

Keywords

  • Counter-flow jet ejection
  • Heat dissipation
  • Minimum energy

ASJC Scopus subject areas

  • Mechanical Engineering

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