Volume 23 Issue 1
Jan.  2008
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YUAN Xiang-jiang, LU Li-peng, SHEN Qing, TU Guo-hua. Study of bypass transition mechanisms in the boundary layer of blunt bodies[J]. Journal of Aerospace Power, 2008, 23(1): 81-86.
Citation: YUAN Xiang-jiang, LU Li-peng, SHEN Qing, TU Guo-hua. Study of bypass transition mechanisms in the boundary layer of blunt bodies[J]. Journal of Aerospace Power, 2008, 23(1): 81-86.
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Study of bypass transition mechanisms in the boundary layer of blunt bodies

  • 1.

    China Aerodynamics Research and Development Center, Mianyang 621000, China

  • 2.

    National Computational Fluid Dynamics Laboratory, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 3.

    School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

  • 4.

    China Academe of Aerospace Aerodynamics, Beijing 100074, China

  • Received Date: 2006-12-27
  • Rev Recd Date: 2007-03-28
  • Publish Date: 2008-01-28
    Abstract
  • A new instability mechanism in the boundary layer of blunt bodies was studied under reentry conditions by using numerical simulation method.The instability mechanism cannot be addressed by linear instability theory.The recent research shows that,there is a nonlinear instability mechanism associated with local finite amplitude disturbance,which differs from the ordinary instability with respect to the T-Swave and secondly instability.The instability process under the influence of the local disturbance in the boundary layer of blunt bodies was simulated numerically.The physical mechanisms for nonlinear interaction of various disturbance modes were identified in the simulation.

     

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    • References(8)
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