Volume 34 Issue 12
Dec.  2019
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Article Navigation >  Journal of Aerospace Power  > 2019  >  34(12): 2549-2558
HONG Liang, Eriqitai, GONG Jian. Numerical simulations of jet mixing enhancement of novel actuator[J]. Journal of Aerospace Power, 2019, 34(12): 2549-2558. doi: 10.13224/j.cnki.jasp.2019.12.003
Citation: HONG Liang, Eriqitai, GONG Jian. Numerical simulations of jet mixing enhancement of novel actuator[J]. Journal of Aerospace Power, 2019, 34(12): 2549-2558. doi: 10.13224/j.cnki.jasp.2019.12.003
shu

Numerical simulations of jet mixing enhancement of novel actuator

doi: 10.13224/j.cnki.jasp.2019.12.003
  • 1.

    Research and Development Center,China Academy of Aerospace Aerodynamics,China Aerospace Science and Technology Corporation,Beijing 100074,China

  • 2.

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

  • Received Date: 2019-04-28
  • Publish Date: 2019-12-28
    Abstract
  • High-momentum novel and conventional actuators jets were used to enhance the mixing of a high speed large-scale round jet. The comparation of the blowing jet on streamwise vortices, flapping and interaction area between the novel and conventional actuators was studied. The jet mixing enhancement flow hysteresis was analyzed. Results show that the novel actuator is superior to the conventional actuator in terms of the blowing period, blowing momentum, peak jet momentum ratio. The jet mixing enhancement hysteresis consists of the actuator hysteresis and flow field hysteresis. Both the conventional actuator and novel actuator peak jet momentum lags behind the piston peak movement speed by 19.5%, and the actuator peak momentum lags behind the flow field about 5%. Compared with the conventional actuator, the interaction area of the novel actuator fluid tab is larger, leading to a better jet mixing enhancement effect.

     

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