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Experimental investigation on pressure oscillation induced by flow instability in SRM

  • Northwestern Polytechnical University Xian

科研成果: 书/报告/会议事项章节会议稿件同行评审

3 引用 (Scopus)

摘要

Pressure oscillation in solid rocket motor is believed to be the result of the interaction between the flow instability and acoustics of its combustion chamber. A cold flow motor was designed in this paper to study the coupling between the corner vortex shedding and the acoustics of a finocyl grain solid rocket motor. Experimental investigation was carried out to determine the acoustics of cold flow motor. The corner vortex shedding is generated at the backward step formed after the burnout of fins. A pintle was used to modify the velocity in the duct to change the frequency of vortex shedding. It is found that large pressure oscillation happens when the pintle which indicates that the frequency of vortex shedding is close to one order of acoustic modes of combustion chamber. The amplitude of pressure oscillation changes as the movement of pintle.

源语言英语
主期刊名60th International Astronautical Congress 2009, IAC 2009
6787-6792
页数6
出版状态已出版 - 2009
活动60th International Astronautical Congress 2009, IAC 2009 - Daejeon, 韩国
期限: 12 10月 200916 10月 2009

出版系列

姓名60th International Astronautical Congress 2009, IAC 2009
8

会议

会议60th International Astronautical Congress 2009, IAC 2009
国家/地区韩国
Daejeon
时期12/10/0916/10/09

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