Linear stability theory for hypersonic boundary layers is presented. The theory is used to study the effects of real gas (under the assumption of local chemical equilibrium) and small nose bluntness on hypersonic boundary layer stability. It is found that chemical reactions have a stabilizing effect on the first mode instability and a destabilizing effect on the second mode instability in hypersonic boundary layers. There is also a tendency for the second-mode instability to shift to lower frequencies. The effect of small nose bluntness is found to be stabilizing.
Transition in hypersonic boundary layers
Symposium on Numerical and Physical Aspects of Aerodynamic Flows ; 1989 ; Long Beach, CA, United States
1989-01-01
Conference paper
No indication
English
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