Volume 30 Issue 2
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HE Peng, DONG Jin-zhong. Effect of slot orientation on synthetic jet-based separationcontrol in a serpentine inlet[J]. Journal of Aerospace Power, 2015, 30(2): 306-314. doi: 10.13224/j.cnki.jasp.2015.02.007
Citation: HE Peng, DONG Jin-zhong. Effect of slot orientation on synthetic jet-based separationcontrol in a serpentine inlet[J]. Journal of Aerospace Power, 2015, 30(2): 306-314. doi: 10.13224/j.cnki.jasp.2015.02.007
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Effect of slot orientation on synthetic jet-based separationcontrol in a serpentine inlet

doi: 10.13224/j.cnki.jasp.2015.02.007

  • School of Energy and Power Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 2013-09-27
  • Publish Date: 2015-02-28
    Abstract
  • A numerical study was conducted to investigate synthetic jet-based boundary layer separation control in a serpentine inlet. Rectangular slots were chosen in this study, spanwise and streamwise orientations of these slots were discussed in detail. The results illustrate streamwise oriented synthetic jet has a higher resistance to the adverse pressure gradient. It penetrates deeper and exhibites stronger persistence than spanwise case as well. When jet momentum coefficient is equal to 1.62×10-3, and the characteristic frequency is 1, separation length is reduced by 38.39% relative to uncontrolled flow field. The performance of serpentime inlet using streamwise oriented synthetic jet are also superior to spanwise case. Outlet pressure coefficient is increased by 158.91%; total pressure recovery coefficient is increased by 0.71%, and total pressure distortion coefficient is reduced by 56.75%.

     

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