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Effects of Jet-to-Jet Spacing of Air-Jet Vortex Generators in Shock-Induced Flow-Separation Control
Experiments were carried out to assess the influence of spanwise spacing between adjacent orifices of an air-jet vortex-generator (AJVG) array on...
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Profiles of streamwise velocity and fluctuations in a hypersonic turbulent boundary layer using acetone tagging velocimetry
Acetone tagging velocimetry (ATV) with nominally 1% mole fraction acetone seeding was conducted in a shock-tunnel-generated hypersonic turbulent...
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Visualization of the shock wave/boundary layer interaction using polarization imaging
AbstractThe flow visualization of a shock wave/boundary layer interaction (SWBLI) has been performed using polarization imaging. This technique used...
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Laboratory Tests on Wind-Wave Generation, Interaction and Breaking Processes
At the atmosphere-ocean interface, the interaction between the atmospheric and ocean boundary layers determines heat and momentum exchanges and can...
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Dynamic characteristics of shock wave propagation in an expanded duct influenced by downstream throttling
In this article, the shock wave propagation in an expanded duct affected by downstream throttling at different positions is investigated....
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Free-stream receptivity of a hypersonic blunt cone using input–output analysis and a shock-kinematic boundary condition
Traditional stability tools have done much in the last few decades to demonstrate the significance of modal instabilities as a pathway for laminar to...
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Positive and negative wall-pressure fluctuations beneath a supersonic turbulent boundary layer
In this work, a supersonic turbulent boundary layer with freestream Mach number 2.25 and Reynolds number based on the momentum thickness around 4000...
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Experimental study of bluntness effects on hypersonic boundary-layer transition over a slender cone using surface mounted pressure sensors
In this work, we studied the bluntness effect on the hypersonic boundary-layer transition over a slender cone at Mach 6 with interchangeable tips in...
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A numerical study of shock-interface interaction and prediction of the mixing zone growth in inhomogeneous medium
The growth of mixing zone on an interface induced by Richtmyer-Meshkov (RM) instability occurs frequently in natural phenomena and in engineering...
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Stability analyses of compressible flat plate boundary layer flow over a mechanically compliant wall
Sustained flight at hypersonic speeds is characterized by high pressure and aerothermal loads imposed on the structure of the aerodynamic vehicle. A...
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Visualization of hypersonic incident shock wave boundary layer interaction
AbstractThe incident shock interactions with the hypersonic laminar and forced turbulent boundary layer are visualized by the planar laser scattering...
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Mitigation of shock-induced flow separation over an axisymmetric flared body using ramped vanes
This paper brings out the ability of ‘ramped vane (RV)’ vortex generators in attenuating a shock-induced flow separation near an axisymmetric...
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Numerical and Experimental Analysis of Three-Dimensional Boundary-Layer Transition Induced by Isolated Cylindrical Roughness Elements
Extensive research to establish an index of roughness that causes abrupt turbulent transition downstream of the roughness and affect natural laminar...
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Effects of Reynolds number and Schmidt number on variable density mixing in shock bubble interaction
Effects of Reynolds ( Re ) number and Schmidt ( Sc ) number on the flow structures and variable density mixing are numerically investigated through the...
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On shock-wave unsteadiness in separated flows
Separated external flows in the high-speed (compressible) regime present interesting fluid-dynamical features. An aspect of particular interest,...
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Experimental study of the high-frequency instability in the hypersonic boundary layer over a cone at 6° angle of attack
The high-frequency instability on a cone at 6° angle of attack is measured in a hypersonic quiet wind tunnel with Reynolds number of 6.90 × 10 6 m −1 ,...
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Non-unique regimes of oscillatory transonic flow in bent channels
The turbulent transonic two-dimensional airflow in 9°-bent channels is studied numerically on the basis of the Reynolds-averaged Navier–Stokes...
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Breakdown regime of a shielded vortex interacting with a standing normal shock: a numerical study
Numerical simulation results of a convecting shielded vortex interacting with a normal shock using a compact scheme in the convecting upwind and...
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Dynamics of separation bubble dilation and collapse in shock wave/turbulent boundary layer interactions
Although several mechanisms have been suggested as explanations for the low-frequency unsteadiness in shock wave/turbulent boundary layer...
