24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-3.8.2

NUMERICAL ANALYSIS OF THE OSCILLATORY BEHAVIORS OF SUPERSONIC IMPINGING JET FLOW

S. I. Kim, S. O. Park
Departement of Aerospace Engineering, KAIST 373-1, Guseong-dong, Yuseong-gu, Daejeon, 305-701, Korea

Keywords: supersonic impinging jet, oscillatory flow, self-sustained oscillation

Numerical simulations of supersonic impinging jet flows are carried out using the axisymmetric Navier-Stokes code. This paper focuses on the oscillatory flow features associated with the variation of the nozzle-to-plate distance. The variation of this frequency with distance shows a staging behavior. The oscillatory behaviors of the flow structural changes and their characteristics are scrutinized.

view full paper