Effect of diamond trip geometries on boundary layer transition for hypersonic inlet

2016 ◽  
Author(s):  
H. Y. Zhao ◽  
H. L. Ni ◽  
Z. M. Zhang ◽  
M. R. Yi
Keyword(s):  
Boundary Layer ◽  
Boundary Layer Transition ◽  
Layer Transition ◽  
Hypersonic Inlet

Effects of Unforced Bounday Layer Transition on the Performance of a Two-Dimensional Hypersonic Inlet

2013 ◽  
Vol 275-277 ◽  
pp. 466-471
Author(s):  
Hai Feng Miao ◽  
Lv Rong Xie ◽  
Weng Xiao Chai
Keyword(s):  
Boundary Layer ◽  
Boundary Layer Transition ◽  
Two Dimensional ◽  
Layer Transition ◽  
Recovery Coefficient ◽  
Static Pressure Distribution ◽  
Hypersonic Inlet ◽  
Flow Rate Increase ◽  
Compression Ramp ◽  
Onset Location

Numerical investigation was conducted on a typical two-dimensional hypersonic inlet to study the influence of unforced boundary layer transition affected by compression ramp geometric parameters on the inlet performance. The numerical results show that the transition onset location on the compression ramp can be delayed by filleting the ramp intersection, and also the inlet's performance obviously improves when the transition onset location is delayed. Compared with full turbulent situation, when the boundary layer transition occurs, the unstart of the inlet is significantly mitigated, the heat transfer rate on the compression ramp decreases, both the total pressure recovery coefficient and mass flow rate increase at both design and off-design points. But the static pressure distribution along the ramp is fairly independent of the varieties of boundary layer.

EXPERIMENTAL AND NUMERICAL INVESTIGATIONS OF BOUNDARY LAYER TRANSITION ON BLUNTED CONES AT SUPERSONIC FLOW

2010 ◽  
Vol 40 (3) ◽  
pp. 309-319 ◽  
Author(s):  
V. N. Brazhko ◽  
A. V. Vaganov ◽  
N. A. Kovaleva ◽  
N. P. Kolina ◽  
I. I. Lipatov
Keyword(s):  
Boundary Layer ◽  
Supersonic Flow ◽  
Boundary Layer Transition ◽  
Layer Transition ◽  
Numerical Investigations

Automatic control of laminar boundary-layer transition

AIAA Journal ◽  
1997 ◽  
Vol 35 ◽  
pp. 85-90
Author(s):  
P. A. Nelson ◽  
M. C. M. Wright ◽  
J.-L. Rioual
Keyword(s):  
Boundary Layer ◽  
Automatic Control ◽  
Laminar Boundary Layer ◽  
Boundary Layer Transition ◽  
Layer Transition
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