Periodic transonic flow and control

Srinivasan Raghunathan, Juliana M. Early, Catalin Tulita, Emmanuel Benard, J. Quest

Research output: Contribution to journalArticle

7 Citations (Scopus)
406 Downloads (Pure)

Abstract

The current understanding of periodic transonic flow is reviewed briefly. The effects of boundary-layer transition, non-adiabatic wall conditions and modifications to the aerofoil surface geometry at the shock interactions on periodic transonic flow are discussed. Through the methods presented, it is proposed that the frequency of periodic motion can be predicted with reasonable accuracy, but there are limitations on the prediction of buffet boundaries associated with periodic transonic flows. Several methods have been proposed by which the periodic motion may be virtually eliminated, most relevantly by altering the position of transition fix, contouring the aerofoils surface or adding a porous surface and a cavity in the region of shock interaction. In addition, it has been shown that heat transfer can have a significant effect on buffet.
Original languageEnglish
Pages (from-to)1-16
Number of pages16
JournalThe Aeronautical Journal
Volume112
Issue number1127
Publication statusPublished - 2008

Keywords

  • shockwave
  • transonic flow
  • flow control

ASJC Scopus subject areas

  • Aerospace Engineering

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