References
- B. H. Goethert 'High Altitude and Space Simulation Testing', ARS Journal.
- K. Annamalai, K. Visvanathan,'Evalution of the performance of supersonic exhaust diffuser using scaled down models', 17th ETF, 1998.
Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)
- Volume 7 Issue 4 Serial No. 19
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- Pages.138-145
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- 2004
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- 1598-9127(pISSN)
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- 2636-0640(eISSN)
Experimental Study of High-Altitude Simulation using Small-Scale Supersonic Diffuser
소형 초음속 디퓨저를 이용한 고고도환경 모사에 대한 시험적 연구
- Lee Ji-Hyung (Agency for Defense Development) ;
- Oh Jong-Yun (Agency for Defense Development) ;
- Byun Jong-Ryul (Agency for Defense Development)
- Published : 2004.12.01
Abstract
Experimental study was conducted on cylindrical supersonic diffuser in order to investigate the effects of the ratios of diffuser area to nozzle throat area (Ad/At), diffuser area to nozzle exit area (Ad/Ae), nozzle exit area to its throat area (Ae/At), and diffuser length to its diameter (L/D), the free volume of vacuum chamber, and the relative distance between nozzle exit and diffuser inlet on the diffuser performance. The study showed that the minimum diffuser starting pressure (Po/Pa)st increased monotonically with increase in (Ad/At) as predicted by the normal shock and momentum theory models and the volume of vacuum chamber affected vacuum pressure level during diffuser operation at lower value of (Ad/Ae). The results of this investigation will be utilized in the design of real-scale high-altitude simulation test facility.