Flow separation in rocket nozzles under high altitude condition

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• 作者：R. Stark ; C. Génin
• 关键词：Nozzle flow ; Separated flows ; Altitude simulation
• 刊名：Shock Waves
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：27
• 期：1
• 页码：63-68
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Engineering Thermodynamics, Heat and Mass Transfer; Fluid- and Aerodynamics; Engineering Fluid Dynamics; Thermodynamics; Acoustics; Condensed Matter Physics;
• 出版者：Springer Berlin Heidelberg
• ISSN：1432-2153
• 卷排序：27

文摘

The knowledge of flow separation in rocket nozzles is crucial for rocket engine design and optimum performance. Typically, flow separation is studied under sea-level conditions. However, this disregards the change of the ambient density during ascent of a launcher. The ambient flow properties are an important factor concerning the design of altitude-adaptive rocket nozzles like the dual bell nozzle. For this reason an experimental study was carried out to study the influence of the ambient density on flow separation within conventional nozzles.