Numerical investigation of inlet starting methods for axisymmetric scramjet engines

Ogawa, Hideaki and Boyce, Russell R. (2010). Numerical investigation of inlet starting methods for axisymmetric scramjet engines. In: 88th JSME (The Japan Society of Mechanical Engineers) Fluids Engineering Division Conference, Yonezawa, Japan, (1708-1709). 30-31 October 2010.

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Author Ogawa, Hideaki
Boyce, Russell R.
Title of paper Numerical investigation of inlet starting methods for axisymmetric scramjet engines
Formatted title
 
Conference name 88th JSME (The Japan Society of Mechanical Engineers) Fluids Engineering Division Conference
Conference location Yonezawa, Japan
Conference dates 30-31 October 2010
Publication Year 2010
Sub-type Oral presentation
Start page 1708
End page 1709
Total pages 2
Language eng
jpn
Abstract/Summary Hypersonic airbreathing propulsion, in particular, scramjets (supersonic combustion ramjets), is a promising technology that offers great potential for efficient and economical access-to-space and atmospheric transport. Reliable in-flight inlet starting is of critical importance for the successful operation of scramjet engines, particularly internal-compression configurations with high-contraction inlets. A wide variety of methods including diaphragm rupture and sliding doors (diaphragm erosion) have been contrived in order to address the inlet starting issue, which is inherent to hypersonic airbreathing systems with internal compression. This paper discusses the mechanism and causes of inlet unstart from aerodynamic viewpoints and assesses the effectiveness and viability of various starting methods, based on steady and transient simulations by means of high-fidelity computational fluid dynamics.
Formatted Abstract/Summary
 
Keyword Scramjet propulsion
Inlet starting
Hypersonic aerodynamics
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes Article in Japanese except for the abstract and figure captions.

Document type: Conference Paper
Collection: School of Mechanical & Mining Engineering Publications
 
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Created: Fri, 25 Feb 2011, 13:51:54 EST by Dr Hideaki Ogawa on behalf of School of Mechanical and Mining Engineering