Transition prediction of a hypersonic boundary layer over a cone at small angle of attack—with the improvement of e N method

2009 ◽  
Vol 52 (1) ◽  
pp. 115-123 ◽  
Author(s):  
CaiHong Su ◽  
Heng Zhou
Keyword(s):  
Boundary Layer ◽  
Small Angle ◽  
Angle Of Attack ◽  
Hypersonic Boundary Layer ◽  
Transition Prediction

scholarly journals Stability Analysis of Hypersonic Boundary Layer over a Cone at Small Angle of Attack

2014 ◽  
Vol 6 ◽  
pp. 217976
Author(s):  
Feng Ji ◽  
Xunhua Liu ◽  
Qiang Wang ◽  
Xiangjiang Yuan ◽  
Qing Shen
Keyword(s):  
Boundary Layer ◽  
Small Angle ◽  
Growth Rates ◽  
Angle Of Attack ◽  
Maximum Growth ◽  
Base Flow ◽  
Linear Stability Theory ◽  
Unstable Wave ◽  
Hypersonic Boundary Layer ◽  
Second Mode

An investigation on the stability of hypersonic boundary layer over a cone at small angle of attack has been performed. After obtaining the steady base flow, linear stability theory (LST) analysis has been made with local parallel assumption. The growth rates of the first mode and second mode waves at different streamwise locations and different azimuthal angles are obtained. The results show that the boundary layer stability was greatly influenced by small angles of attack. The maximum growth rate of the most unstable wave on the leeward is larger than that on the windward. Moreover, dominating second mode wave starts earlier on the leeward than that on the windward. The LST result also shows that there is a “valley” region around 120°~150° meridian in the maximum growth rates curve.

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

scholarly journals An effect of small angle of attack on disturbances evolution in swept wing boundary layer at Mach number M=2

2018 ◽  
Author(s):  
N. V. Semionov ◽  
Yu. G. Yermolaev ◽  
V. L. Kocharin ◽  
A. D. Kosinov ◽  
A. N. Semenov ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Mach Number ◽  
Small Angle ◽  
Angle Of Attack ◽  
Swept Wing
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