Volume 37 Issue 6
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BAI Yang, LUO Xiang, HE Jian. Influence of turbulence parameters on flow characteristics of cavity with tubed vortex reducer[J]. Journal of Aerospace Power, 2022, 37(6): 1295-1305. doi: 10.13224/j.cnki.jasp.20210022
Citation: BAI Yang, LUO Xiang, HE Jian. Influence of turbulence parameters on flow characteristics of cavity with tubed vortex reducer[J]. Journal of Aerospace Power, 2022, 37(6): 1295-1305. doi: 10.13224/j.cnki.jasp.20210022
shu

Influence of turbulence parameters on flow characteristics of cavity with tubed vortex reducer

doi: 10.13224/j.cnki.jasp.20210022
  • 1.

    Research Institute of Aero-Engine，Beihang University，Beijing 102206，China

  • 2.

    National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics，School of Energy and Power Engineering，Beihang University，Beijing 102206，China

  • Received Date: 2021-01-16
  • Publish Date: 2022-06-28
    Abstract
  • This parameter was modified by calculating the entrainment flow rate.The result showed that the modified turbulence parameter had great control effect on flow state and total pressure coefficient.Both the total pressure coefficient and the effective swirl fraction relied on the modified turbulence parameter and the inlet pre-swirl fraction.In addition，the ability of air to maintain radial internal flow state was enhanced with the increase of modified turbulence parameter.Therefore，the area requiring suppress circumferential rotation decreased，which shortened the optimal length of the tubed vortex reducer with the minimum total pressure coefficient.

     

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