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This paper describes an experimental study on the oscillation flow characteristics of submerged supersonic gas jets issued from Laval nozzles. The flow pattern during the jet development and the jet expansion feedback phenomenon are studied using a high-speed camera and a pressure measurement system. The experimental results indicate that along the downstream distance, the jet has three flow regimes:...
Abstract. Aerodynamic behavior of pulsed hypersonic light oil jets injected at 2 km/s and 3 km/s is presented. Auto-ignition and combustion of the fuel during the injection process were visualized. The combustion around the disintegrating jet was enhanced by liquid atomization created by the very high injection pressure as well as the interfacial instability of the hypersonic jet. The jets were injected...
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