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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2022, Vol. 43 ›› Issue (S2): 76-88.

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Magnetohydrodynamic flow control of double-cone under high temperature real gas effect

Kai LUO1, Qiu WANG1(), Jinping LI1, Wei ZHAO1,2   

  1. 1.State Key Laboratory of High Temperature Gas Dynamics,Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China
    2.School of Engineering Science,University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2022-06-30 Revised:2022-07-27 Accepted:2022-08-17 Online:2022-12-25 Published:2022-09-01
  • Contact: Qiu WANG E-mail:wangqiu@imech.ac.cn
  • Supported by:
    National Natural Science Foundation of China(12072352);The Fundation of Youth Innovation Promotion Association, CAS(2021020)

Abstract:

As an active flow control technique, magnetohydrodynamic flow control can effectively improve the aerodynamic performance of hypersonic vehicles by influencing the motion of the plasma flow field after strong excitation through an applied magnetic field. In this paper, the influence of different magnetic induction intensity and magnet positions on the flow structure and distribution of key parameters in the double-cone model are studied by numerical simulation. The results show that the countercurrent Lorentz force always dominates the position of the three wave points, the size of the separation region and the peak value of wall heat flux and pressure in the flow field with the increase of magnetic induction intensity. Meanwhile, the existence of Lorentz force will also change the electron density distribution behind the shock wave. In addition, when the magnet position moves forward, the change of the component and peak position of Lorentz force will strengthen the effect on the separation shock wave, which is conducive to further control the structure of the separation region and the distribution of wall heat flux and pressure.

Key words: magnetohydrodynamic, flow control, double-cone flow, high temperature gas effect, Lorentz force

CLC Number: