한국추진공학회:학술대회논문집 (Proceedings of the Korean Society of Propulsion Engineers Conference)
- 한국추진공학회 2008년 영문 학술대회
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- Pages.492-498
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- 2008
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- 1975-342X(pISSN)
Development Study on Variable Nozzle For Hypersonic Air Breathing Engine
- Kojima, Takayuki (Japan Aerospace Exploration Agency) ;
- Taguchi, Hideyuki (Japan Aerospace Exploration Agency) ;
- Kobayashi, Hiroaki (Japan Aerospace Exploration Agency) ;
- Fukiba, Katsuyoshi (Japan Aerospace Exploration Agency) ;
- Sato, Tetsuya (Waseda University) ;
- Hatta, Hiroshi (Japan Aerospace Exploration Agency) ;
- Goto, Ken (Japan Aerospace Exploration Agency) ;
- Koyanagi, Jun (Japan Aerospace Exploration Agency) ;
- Aoki, Takuya (Japan Aerospace Exploration Agency)
- 발행 : 2008.03.30
초록
In this paper are described recent studies about variable nozzles, that are a rectangular type nozzle and an axisymmetric type nozzle, of the precooled turbojet engine(S-engine) which are developed for the demonstration of the key technologies for the propulsion system of the hypersonic airplane and the first stage propulsion of the TSTO space plane. For the rectangular nozzle, three types of C-shaped carbon/carbon composite cowls which includes subscale model of the precooled turbojet engine are fabricated and the fine attachment to the ramp is confirmed. For the firing of the S-engine, stainless steel cowl with concrete heat insulator are fabricated and tested for 20 sec. Axisymmetric variable plug nozzle which is made of C/C material is fabricated and pressurized by the cold flow test. The axisymmetric plug nozzle can be operative up to 0.57 MPa of nozzle inlet pressure.