Rarefaction effect on non-stationary interaction of supersonic underexpanded jets with the normal infinite flat plate
Abstract
An experimental study concerned with nonstationary supersonic jet/plate interaction is described. Three different nonstationary flow regimes were observed. In the course of experiments the dependence of oscillation phases, amplitudes, and frequencies on initial parameters was proved. Approximations for oscillation frequency were obtained. The effect of rarefaction on the nonstationary regime boundaries was investigated. The minimal Reynolds numbers permitting the existence of nonstationary regimes and their dependence on basic flow parameters were obtained.
- Publication:
-
Rarefied Gas Dynamics
- Pub Date:
- 1991
- Bibcode:
- 1991rgd..proc..979F
- Keywords:
-
- Flat Plates;
- Gas Expansion;
- Rarefied Gas Dynamics;
- Supersonic Jet Flow;
- Gas-Solid Interactions;
- Reynolds Number;
- Shock Waves;
- Vacuum Chambers;
- Fluid Mechanics and Heat Transfer