공압시험용 플러그 노즐의 핀틀 형상 및 작동압력에 따른 유동 특성 분석

다국어 초록 (Multilingual Abstract)

The thrust control calculation according to the operation of plug nozzle for cold air test and the analysis of the flow characteristics of the pintle shape and operation pressure are performed. The numerical computation was verified by comparing the flow structure and the coefficient of thrust with the experimental data. It was confirmed that the nozzle throat was formed at the design position on each pintle shape, and thrust control up to 1:8 was achieved only by the stroke change. Finally, although the aerospike nozzle is autonomous, it is unfavorable in the under_expansion condition, if it is designed for a very low nozzle pressure ratio.

참고문헌 (Reference)

1 진정근, "핀틀-노즐이 적용된 고체추진기관의 연소 시험 성능 분석" 한국추진공학회 18 (18): 19-28, 2014

2 김중근, "핀틀 노즐 유동장의 수치해석적 연구" 한국추진공학회 13 (13): 35-41, 2009

3 Ruf, J.H., "The Plume Physics Behind Aerospike Nozzle Altitude Compensation and Slipstream Effect" 1997

4 Verma, S. B., "Performance Characteristics of an Annular Conical Aerospike Nozzle with Freestream Effect" 25 (25): 783-791, 2009

5 Bui, T.T, "Flight Research of an Aerospike Nozzle using High Power Solid Rockets" 2005

6 Besnard, E, "Design, Manufacturing and Test of a Plug Nozzle Rocket Engine" 2002

7 Nair, P. P., "Computational Study of Performance Characteristics for Truncated Conical Aerospike Nozzles" 26 (26): 483-489, 2017

8 "Aerospike Engine"