Volume 35 Issue 11
Nov.  2020
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Article Navigation >  Journal of Aerospace Power  > 2020  >  35(11): 2421-2428
LIAO Wenhao, GUO Jinxin, LIU Xiaoyong. Uncertainty analysis in scramjet performance parameters measurements[J]. Journal of Aerospace Power, 2020, 35(11): 2421-2428. doi: 10.13224/j.cnki.jasp.2020.11.019
Citation: LIAO Wenhao, GUO Jinxin, LIU Xiaoyong. Uncertainty analysis in scramjet performance parameters measurements[J]. Journal of Aerospace Power, 2020, 35(11): 2421-2428. doi: 10.13224/j.cnki.jasp.2020.11.019
shu

Uncertainty analysis in scramjet performance parameters measurements

doi: 10.13224/j.cnki.jasp.2020.11.019
  • 1.

    School of Aerospace Engineering,Beijing Institute of Technology,Beijing 100081,China

  • 2.

    Science and Technology on Scramjet Laboratory,Beijing Power Machinery Research Institute,China Aerospace Science and Industry Corporation Limited,Beijing 100074,China

  • Received Date: 2020-03-31
  • Publish Date: 2020-11-28
    Abstract
  • Based on wind tunnel test uncertainty assessment of AIAA S-071A-1999 and the uncertainty study for the wind tunnel testing,aeroengine performance testing and rocket ground testing in the international space power community,an uncertainty analysis method for the scramjet performance testing was established,and corresponding analysis was given.Results showed that the uncertainty induced by the free-jet testing measurement was predominant in evaluating the overall scramjet performance,and the bias limit was over 90% in the uncertainty of scramjet performance parameters measurements.In conclusion,some valuable results and suggestions about the uncertainty of overall performance of scramjet were obtained,and these results can improve the accuracy in scramjet performance parameters measurements,showing prominent application prospect in scramjet development.

     

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