scholarly journals Nonlinear interactions in the hypersonic boundary layer on the permeable wall

2020 ◽  
Vol 32 (10) ◽  
pp. 104110
Author(s):  
Wenkai Zhu ◽  
Xi Chen ◽  
Yiding Zhu ◽  
Cunbiao Lee
Keyword(s):  
Boundary Layer ◽  
Permeable Wall ◽  
Hypersonic Boundary Layer ◽  
Nonlinear Interactions

scholarly journals Nonlinear interactions in a hypersonic boundary layer

AIP Advances ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 035104
Author(s):  
Chuanhong Zhang ◽  
Zhiwei Shi
Keyword(s):  
Boundary Layer ◽  
Hypersonic Boundary Layer ◽  
Nonlinear Interactions

Evolution of nonlinear processes in a hypersonic boundary layer on a sharp cone

2008 ◽  
Vol 611 ◽  
pp. 427-442 ◽  
Author(s):  
D. BOUNTIN ◽  
A. SHIPLYUK ◽  
A. MASLOV
Keyword(s):  
Boundary Layer ◽  
Mach Number ◽  
Basic Mechanism ◽  
Hypersonic Boundary Layer ◽  
Nonlinear Interactions ◽  
Nonlinear Processes ◽  
Voltage Fluctuation ◽  
Second Mode ◽  
Sharp Cone ◽  
Second Mode Of Disturbances

Nonlinear processes in a hypersonic boundary layer on a sharp cone are considered using the bicoherence method. The experiments are performed for a Mach number M∞ = 5.95 with introduction of artificial wave packets at the frequency of the second mode. It is shown that the basic mechanism of nonlinear interaction at the location of the maximum r.m.s. voltage fluctuation is the subharmonic resonance; all nonlinear interactions in the maximum r.m.s. voltage fluctuation layer are related to the second mode of disturbances; nonlinear processes above and below that layer are much more intense than those in it. The effect of artificial disturbances on nonlinear interactions in the boundary layer is shown to be insignificant.

Three Waves Interaction of Disterbanced in the Hypersonic Boundary Layer

2008 ◽  
Vol 3 (3) ◽  
pp. 39-45
Author(s):  
Sergey A. Gaponov ◽  
Natalya M. Terekhova ◽  
Boris V. Smorodsky
Keyword(s):  
Boundary Layer ◽  
Nonlinear Interaction ◽  
Three Dimensional ◽  
Hypersonic Boundary Layer ◽  
Nonlinear Interactions ◽  
Threshold Values ◽  
Weakly Nonlinear ◽  
Intensity Threshold ◽  
Tollmien Schlichting ◽  
Waves Interaction

In frames of the weakly nonlinear stability theory a disturbances interaction in a hypersonic boundary layer is considered. It is established that nonlinear interaction in a hypersonic boundary layer is probably, it is carried out between waves of the different nature (acoustical and vortical) in a parametric resonance regime. For three-dimensional vortical waves similar interaction is more intensively. The plane acoustical wave which increases more intensively in comparison with the threedimensional is the pumping wave. There are intensity threshold values of the nonlinear interaction beginning and threshold values of the explosive growth beginning. It is possible to expect, that nonlinear interactions for vortical waves which are carried out in wide frequency band can lead to a package growth of Tollmien-Schlichting waves.

Effect of angle of attack on hypersonic boundary-layer stability

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 464-470 ◽  
Author(s):  
Glen P. Doggett ◽  
Ndaona Chokani ◽  
Stephen P. Wilkinson
Keyword(s):  
Boundary Layer ◽  
Angle Of Attack ◽  
Boundary Layer Stability ◽  
Hypersonic Boundary Layer
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