Volume 30 Issue 10
Oct.  2015
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Article Navigation >  Journal of Aerospace Power  > 2015  >  30(10): 2516-2522
YANG Shun-kai, ZHANG Kun-yuan, WANG Lei, LI Yong-zhou. Research on elastic deformable geometry of hypersonic inlet with multiple forces[J]. Journal of Aerospace Power, 2015, 30(10): 2516-2522. doi: 10.13224/j.cnki.jasp.2015.10.026
Citation: YANG Shun-kai, ZHANG Kun-yuan, WANG Lei, LI Yong-zhou. Research on elastic deformable geometry of hypersonic inlet with multiple forces[J]. Journal of Aerospace Power, 2015, 30(10): 2516-2522. doi: 10.13224/j.cnki.jasp.2015.10.026
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Research on elastic deformable geometry of hypersonic inlet with multiple forces

doi: 10.13224/j.cnki.jasp.2015.10.026

  • Jiangsu Province Key Laboratory of Aerospace Power System, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

  • Received Date: 2014-04-09
  • Publish Date: 2015-10-28
    Abstract
  • Since 2-D hypersonic inlet should work with Mach numer ranging from 4.5 to 6.0, an elastically deformable scheme of inlet's compression surface with multiple forces was explored in this work. With numerical computation, the optimal number of forces was firstly studied. The results showed that three forces were more effective in elastic deformation. Then the inlet deformation with the three forces was analyzed by the method of fluid-structure interaction (FSI). The results indicated that the distribution of static pressure on the deformable compression surface was almost consistent with that on the ideal surface. The results of performance analysis demonstrated that the flow coefficient of the 2-D inlet designed at Mach numer is 6.0 could reach 0.98 at Mach numer is 4.5 and 1.00 at Mach numer is 5.0 after deformation. Furthermore, the total pressure at exit section just remained unchanged compared with fixed geometry inlet. These indicate that the elastically deformable scheme of 2-D inlet with multiple forces is feasible, and also helpful to improve the inlet's characteristics at off-design points.

     

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