Volume 33 Issue 9
Sep.  2018
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Reversal design of external compression bump of Bump inlet based on osculating cones principle[J]. Journal of Aerospace Power, 2018, 33(9): 2257-2267. doi: 10.13224/j.cnki.jasp.2018.09.024
Citation: Reversal design of external compression bump of Bump inlet based on osculating cones principle[J]. Journal of Aerospace Power, 2018, 33(9): 2257-2267. doi: 10.13224/j.cnki.jasp.2018.09.024

Reversal design of external compression bump of Bump inlet based on osculating cones principle

doi: 10.13224/j.cnki.jasp.2018.09.024
  • Received Date: 2017-04-01
  • Publish Date: 2018-09-28
  • A method for the design of external compressed bump of Bump inlet based on the theory of osculating cones was proposed.. A variable was introduced to control the shape of bump so that the pressure gradient on the bump surface can be adjusted. In this way, the incoming boundary-layer can be further damped. Meanwhile, a quick mass flow coefficient estimation was set up in accompany with the design process to evaluate the mass flow coefficient of the Bump inlet. The discrepancy of the mass flow coefficient estimation was less than 2%, validating the accuracy of the estimation. Results showed that osculating method can generate more extensive bump configuration, which can enhance the mass flow coefficient by 4.03%, and disperse additional boundary layer flow by 2.12%.

     

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