Analysis of losses in supersonic mixing and reacting flows
Abstract
A method for analyzing flow losses and thrust potential in supersonic combustors is presented. This method relies on a complete and consistent one-dimensional representation of a three-dimensional flow-field. Numerical results for flush wall fuel injection into a Mach 3 flow are examined and comparisons are made with experimental measurements of fuel concentration. Mixing results for a swept injection ramp, a straight (unswept) injection ramp, and a thirty degree downstream-directed flush wall jet in the same combustor duct are analyzed. The flow loss/thrust potential of the flush wall jet and the swept ramp are investigated (based on reacting solutions) using computed combustor effectiveness. The wall jet displays slightly higher thrust potential than the swept ramp at the end of the combustor.
- Publication:
-
AIAA, SAE, ASME, and ASEE, 27th Joint Propulsion Conference
- Pub Date:
- June 1991
- Bibcode:
- 1991jpsc.confS....R
- Keywords:
-
- Combustion Chambers;
- Flow Distribution;
- Fuel Injection;
- Jet Thrust;
- Supersonic Combustion;
- Supersonic Flow;
- Computerized Simulation;
- Mach Number;
- Propulsive Efficiency;
- Supersonic Combustion Ramjet Engines;
- Three Dimensional Flow;
- Wall Jets;
- Fluid Mechanics and Heat Transfer