Numerical Study for the Resonant Triad Interaction and Secondary Instability in a Two-Dimensional Supersonic Boundary Layer

DONG Ya-ni; ZHOU Heng

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DONG Ya-ni, ZHOU Heng. Numerical Study for the Resonant Triad Interaction and Secondary Instability in a Two-Dimensional Supersonic Boundary Layer[J]. Applied Mathematics and Mechanics, 2006, 27(2): 127-133.

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Numerical Study for the Resonant Triad Interaction and Secondary Instability in a Two-Dimensional Supersonic Boundary Layer

DONG Ya-ni^1,2,
ZHOU Heng^1,2

1.
Department of Mechanics, Tianjin University, Tianjin 300072, P. R. China;

Received Date: 2005-04-13
Rev Recd Date: 2005-10-20
Publish Date: 2006-02-15

Abstract

Abstract

Direct numerical simulation was done for a supersonic boundary layer, to see if the mechanism for the generation of sub-harmonic waves, similar to those for the incompressible flows, existed in the process of laminar-turbulent transition. The results show that mechanisms of both resonant triad and secondary instability do exist. Discussions were made on whether these two mechanisms are really important in laminar-turbulent transition.
- resonant triad,
- secondary instability,
- supersonic boundary layer,
- T-S wave

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References(6)

References

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