한국추진공학회:학술대회논문집 (Proceedings of the Korean Society of Propulsion Engineers Conference)
- 한국추진공학회 2005년도 제25회 추계학술대회논문집
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- Pages.46-55
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- 2005
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- 1975-342X(pISSN)
초음속 디퓨져 시동 과정에 관한 수치 모사; 초기 진공도에 따른 디퓨져 내부 충격파 구조의 발달 과정
Numerical simulation on starting transients in supersonic exhaust diffuser; evolution of internal shock structures with different initial cell pressures
- 발행 : 2005.11.01
초록
For the sea-level performance test of rocket motor designed to operate in the upper atmosphere, ejectors with no induced secondary flow are generally used, which serves dual purposes of evacuating the test cell and performing as a supersonic exhaust diffuser (SED). The main concern of this research is to simulate starting transients in order to visualize evolution of internal shock structures in SED with different initial cell (vacuum chamber) pressures. RANS code with low Reynolds