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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2015, Vol. 36 ›› Issue (1): 357-372.doi: 10.7527/S1000-6893.2014.0244

• Aerothermodynamics • Previous Articles     Next Articles

Transition and prediction for hypersonic boundary layers

LUO Jisheng   

  1. School of Mechanical Engineering, Tianjin University, Tianjin 300072, China
  • Received:2014-08-04 Revised:2014-10-08 Online:2015-01-15 Published:2014-10-09
  • Supported by:

    National Natural Science Foundation of China (11332007)

Abstract:

It is summarized that the basic process and problems of the transition of boundary layers. Based on which, the fundamentally distinguishes in instability of hypersonic boundary layers from incompressible boundary layers are shown, and the transition mechanism, receptivity characteristic, transition prediction methods for three-dimensional hypersonic boundary layers are introduced, in which the eN method using in engineering and it's rational improvement is specially shown. Some application examples of prediction transition for three-dimensional hypersonic boundary layers using eN method are given. Finally, the difficulty and problems need to be solved in the hypersonic boundary layers are introduced.

Key words: hypersonic boundary layer, hydrodynamic stability theory, mechanism and prediction of transition, receptivity, eN method

CLC Number: