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http://dx.doi.org/10.5139/JKSAS.2020.48.11.889

Numerical Study on the Process of Supersonic Flow Formation in a Direct-Connect Supersonic Combustor  

Jeong, Seong-Min (Department of Aerospace Engineering, Pusan National University)
Han, Hyunh-Seok (Department of Aerospace Engineering, Pusan National University)
Sung, Bu-Kyeng (Department of Aerospace Engineering, Pusan National University)
Lee, Eun-Sung (Department of Aerospace Engineering, Pusan National University)
Choi, Jeong-Yoel (Department of Aerospace Engineering, Pusan National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.48, no.11, 2020 , pp. 889-902 More about this Journal
Abstract
In this study, a numerical analysis was performed to confirm the formation of supersonic flow and the stabilization time satisfying the design condition in a Direct-connect supersonic combustor. The process was examined in which the high-pressure gas of vitiation air heater propagates downstream to the supersonic combustor and forms a supersonic flow field. It was confirmed through the analysis of pressure and temperature that the supersonic flow field satisfies the design points of Mach number 2.0 and 1,000 K, and requires a minimum of 4.0 ms for stabilization. These results indicate that the time required for the supersonic flow field stabilization should be taken into account when testing for the supersonic combustion experiment.
Keywords
Direct-connect Supersonic Combustor; Vitiation Air Heater; Supersonic Flow Stabilization; Test Time; Numerical Analysis;
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Times Cited By KSCI : 8  (Citation Analysis)
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