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SUN Xiao-hui, CHEN Zhi-hua, XUE Da-wen, SHA Sha. MHD control of oblique detonation wave front induced by double wedges[J]. Journal of Aerospace Power, 2012, 27(4): 735-741.
Citation: SUN Xiao-hui, CHEN Zhi-hua, XUE Da-wen, SHA Sha. MHD control of oblique detonation wave front induced by double wedges[J]. Journal of Aerospace Power, 2012, 27(4): 735-741.
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MHD control of oblique detonation wave front induced by double wedges

  • Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210014, China

  • Received Date: 2011-05-09
  • Rev Recd Date: 2012-02-20
  • Publish Date: 2012-04-28
    Abstract
  • Based on the requirement of detonation propulsion of the hypersonic aircraft research,both of the structural types of the oblique detonation waves (ODWs) induced by double wedges and the feasibility of its magnetohydrodynamic (MHD) control of oblique detonation wave (ODW) have been investigated numerically,furthermore,the influences of angle variations of the second ramp on the detonation flow field and MHD control have been discussed.The results show that,for the double wedge detonation with the first and second ramp angles of 15° and 20°,respectively,MHD control can return the position of a stable ODW wave front to its designed location,and can also turn the unstable ODW to be stable,but it is unable to return the unstable ODW front back to the desired place.With the increase of the second ramp angle,the MHD control can also return the ODW front under the condition of a stable ODW.However,when second ramp angle is bigger than 25°,the flow field becomes unstable,and it cannot be manipulated.In this case,with the increase of reaction rate,the ODW stability can be controlled again,but there is no way to return its front to the desired location.

     

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