한국추진공학회:학술대회논문집 (Proceedings of the Korean Society of Propulsion Engineers Conference)
- 한국추진공학회 2004년도 제22회 춘계학술대회논문집
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- Pages.550-559
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- 2004
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- 1975-342X(pISSN)
The Ascendancy of Grain Configuration on the Starting Transient of Solid Rockets
- V.R. Sanal Kumar (Vikram Sarabhai Space Centre, Currently at the Andong National University) ;
- Kim, Heuy-Dong (School of Mechanical Engineering, Andong National University) ;
- B.N. Raghunandan (Aerospace Engineering, Indian Institute of Scienc) ;
- Toshiaki Setoguchl (Department of Mechanical Engineering, Saga University. Japan)
- 발행 : 2004.03.01
초록
Theoretical studies have been carried out to examine the influence of the grain geometry-dependent driving forces, which control the internal flow pattern of solid rockets. Numerical studies have been executed with the help of a two-dimensional code. This code solves standard k-omega turbulence equations using the coupled second order implicit unsteady formulation. It has been concluded that the grain port divergence angles have significant leverage on the formation of recirculation bubbles leading for pressure oscillations, flow separation and reattachment. In solid rockets flow reattachment will favour secondary ignition and that will add to the complexity of the starting transient prediction.