An investigation of impulse jet outflowing from multi-nozzle blocks by means of the schlieren installation
Abstract
Studies carried out using schlieren camera IAB-451 with a spark light source reveal the structure of composite pulse jets. The system of vortices which appears at the exit of nozzles in the initial stage of the flow essentially affects the behavior of the jet flow in the stage of formation. Primary-shock-wave propagation and contact-surface propagation are compared for the cases of single and composite jets. The effect of repulsion of adjacent jets due to interaction of vortices is discovered. During the quasi-stationary stage of the flow from blocks of nozzles, gas-dynamic inversion and anomalous lateral prominences were observed.
- Publication:
-
IN: Optical methods in dynamics of fluids and solids; Proceedings of the International Symposium
- Pub Date:
- 1985
- Bibcode:
- 1985omdf.proc..357G
- Keywords:
-
- Flow Visualization;
- Jet Flow;
- Nozzle Flow;
- Outlet Flow;
- Schlieren Photography;
- Nitrogen;
- Shock Wave Propagation;
- Vortex Rings;
- Fluid Mechanics and Heat Transfer