Volume 29 Issue 9
Sep.  2014
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Article Navigation >  Journal of Aerospace Power  > 2014  >  29(9): 2070-2078
GU Tian-lai, FU Lei, ZHANG Shuai, ZHENG Yao. Preliminary analysis of jaws inlet performance under design conditions[J]. Journal of Aerospace Power, 2014, 29(9): 2070-2078. doi: 10.13224/j.cnki.jasp.2014.09.008
Citation: GU Tian-lai, FU Lei, ZHANG Shuai, ZHENG Yao. Preliminary analysis of jaws inlet performance under design conditions[J]. Journal of Aerospace Power, 2014, 29(9): 2070-2078. doi: 10.13224/j.cnki.jasp.2014.09.008
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Preliminary analysis of jaws inlet performance under design conditions

doi: 10.13224/j.cnki.jasp.2014.09.008

  • School of Aeronautics and Astronautics, Zhejiang University, Hangzhou 310027, China

  • Received Date: 2013-06-03
  • Publish Date: 2014-09-28
    Abstract
  • The design method of the three-dimensional inward turning hypersonic jaws inlet was introduced. Corresponding design codes were developed. Thereafter, a CFD technology was used to verify this method and the design codes with the generated jaws inlet model under the height of 30km, design Mach number of 5 and attack angle of 0°, respectively. Finally, geometry and aerodynamic performances of jaws inlet under design conditions affected by the design parameters, such as the streamline tracing outlet profile, the compression angle set of base field and the design Mach number, were compared and analyzed. Result shows that compared with a low aspect ratio, the geometry performance will be better if the aspect ratio of rectangle-outlet approaches 2 with shorter total length and smaller surface area. Moreover, the compression angles should be set between 8° and 12° in preliminary design for relatively better performances, with the latter compression angle smaller than the former.

     

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