文章基本信息

标题：Numerical Characterisation of Supersonic Exhaust Diffusers
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作者：M. Srinivasa Rao ; Afroz Javed ; Debasis Chakraborty 等
期刊名称：Defence Science Journal
印刷版ISSN：0976-464X
出版年度：2017
卷号：67
期号：2
页码：219-223
语种：English
出版社：Defence Scientific Information & Documentation Centre
摘要：Rocket motors that are designed to operate at high altitudes need a nozzle with a large expansion ratio to maximize the thrust at much lower atmospheric pressure than that of the sea level pressure. Accurate performance of these nozzles cannot be obtained when static tested on ground. Computational fluid dynamics (CFD) analyses have been performed to characterise the supersonic exhaust diffuser (SED). The results obtained from the CFD analyses have been found to be in good agreement with experimental and numerical values reported in the published literature. Started and un-started regions of the SED have been identified with the CFD results.
关键词：Computational fluid dynamics;High altitude;Supersonic exhaust diffuser;Rocket nozzles