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Lift enhancement method by synthetic jet circulation control

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Abstract

A novel circulation control technique is proposed to overcome the shortcomings of blowing jet circulation control, which uses the synthetic jet as the actuator and avoids the limitation about air supply requirement. The effectiveness of synthetic jet circulation control to enhance lift of NCCR1510-7067N airfoil is confirmed by solving the 2-D unsteady Reynolds-averaged Navier-Stokes equations. The aerodynamic characteristics and the flow structure (especially close to the trailing edge) of NCCR1510-7067N airfoil at zero angle of attack are also presented to discuss the mechanism of lift enhancement of the airfoil with synthetic jet circulation control. The results indicate that the synthetic jet can effectively delay the separation point on the airfoil trailing edge and increase the circulation and lift of the airfoil by Coanda effect. The numerical simulation results demonstrate that the lift augmentation efficiency with synthetic jet circulation control reaches ΔC L /C µ=114 in the present study, which is much higher than the value 12.1 in the case with steady blowing jet circulation control.

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Authors and Affiliations

  1. State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai, 200240, China

    PanFeng Zhang

  2. Institute of Fluid Mechanics, Beijing University of Aeronautic and Astronautics, Beijing, 100191, China

    PanFeng Zhang, Bo Yan & ChenFeng Dai

  3. Key Laboratory of Fluid Mechanics, Ministry of Education, Beijing, 100191, China

    Bo Yan & ChenFeng Dai

Authors
  1. PanFeng Zhang
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  2. Bo Yan
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  3. ChenFeng Dai
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Correspondence to Bo Yan.

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Zhang, P., Yan, B. & Dai, C. Lift enhancement method by synthetic jet circulation control. Sci. China Technol. Sci. 55, 2585–2592 (2012). https://doi.org/10.1007/s11431-012-4896-4

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  • DOI: https://doi.org/10.1007/s11431-012-4896-4

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