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http://dx.doi.org/10.5139/JKSAS.2008.36.7.695

Flow instability of cryogenic fluid in the downstream of orifice  

Lee, Se-Young (건국대학교 항공우주공학과)
Lee, Chang-Jin (건국대학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.7, 2008 , pp. 695-702 More about this Journal
Abstract
Flow instability in the rocket turbo pump systems can be caused by various elements such as valve, orifice and venturi and etc. The formation of cavitation specially in the propellant feeding system can trigger the mass flow and pressure oscillation due to cyclic formation and depletion of cavitations. If the cryogenic propellant are used, which is very sensitive to temperature variation, the change of propellant properties due to thermodynamic effect should be accounted for in the flow analysis. This study focuses on the formation of cryogenic cavitation adopting MUSHY IDM model suggested by Shyy and coworkers. Also, the flow instability is investigated with developed numerical code in the downstream of orifice flow. To this end, three different orifices are selected and investigated by the numerical calculation.
Keywords
Cryogenic fluid; Cavitation; Orifice; Flow Instability;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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