Volume 35 Issue 9
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WEI Wei, REN Siyuan, DA Xingya. Coupling effect of boundary layer ingestion on rectangular-to-circular intake and fan[J]. Journal of Aerospace Power, 2020, 35(9): 1943-1953. doi: 10.13224/j.cnki.jasp.2020.09.017
Citation: WEI Wei, REN Siyuan, DA Xingya. Coupling effect of boundary layer ingestion on rectangular-to-circular intake and fan[J]. Journal of Aerospace Power, 2020, 35(9): 1943-1953. doi: 10.13224/j.cnki.jasp.2020.09.017
shu

Coupling effect of boundary layer ingestion on rectangular-to-circular intake and fan

doi: 10.13224/j.cnki.jasp.2020.09.017
  • 1.

    China Aerodynamic Research and Development Center,Mianyang Sichuan 621000,China

  • 2.

    High Speed Aerodynamics Institute,China Aerodynamic Research and Development Center,Mianyang Sichuan 621000,China

  • Received Date: 2020-02-22
  • Publish Date: 2020-09-28
    Abstract
  • Focusing on the boundary layer ingestion effects on the rectangular-to-circular S-shaped intake and fan coupling aerodynamic performance, steady and unsteady computational fluid dynamics (CFD) numerical simulation methods were used to analyze the intake and the fan’s aerodynamic performance and the fluid features. The numerical simulation and analysis results revealed the primary effects of the inlet boundary layer ingestion. With the increase of intake boundary layer ingestion thickness, the steady circumferential total pressure distortion index of the intake outlet, the total pressure defect and the relative airflow angle of the distortion regions rose, and the flow coefficient decreased within the total pressure distortion region. However, the size of the intake distortion region changed little, and the inlet boundary layer thickness made minimal effects on the total aerodynamic performance of the intake and the fan. Due to the pressurization effect of the fan, the outlet airflow parameters distortion among circumferential direction was weakened effectively.

     

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