Mechanism for frustum transition over blunt cones at hypersonic speeds

P Paredes, MM Choudhari, F Li - Journal of Fluid Mechanics, 2020 - cambridge.org
Numerical and experimental studies have demonstrated laminar–turbulent transition in
hypersonic boundary layers over sharp cones via the modal growth of planar Mack-mode …

On the effect of free-stream turbulence on boundary-layer transition

JHM Fransson, S Shahinfar - Journal of Fluid Mechanics, 2020 - cambridge.org
Free-stream turbulence (FST) and its effect on boundary-layer transition is an intricate
problem. Elongated unsteady streamwise streaks of low and high speed are created inside …

Streak formation in flow over biomimetic fish scale arrays

M Muthuramalingam, LS Villemin… - Journal of …, 2019 - journals.biologists.com
The surface topology of the scale pattern from the European sea bass (Dicentrarchus labrax)
was measured using a digital microscope and geometrically reconstructed using computer …

Influence of freestream turbulence on the flow over a wall roughness

MA Bucci, S Cherubini, JC Loiseau, JC Robinet - Physical Review Fluids, 2021 - APS
The effect of freestream turbulence on the dynamics of an incompressible flow past a
cylindrical roughness element in subcritical conditions (ie, for Reynolds numbers below the …

Stability analysis of boundary layers controlled by miniature vortex generators

L Siconolfi, S Camarri, JHM Fransson - Journal of Fluid Mechanics, 2015 - cambridge.org
It is currently known that Tollmien–Schlichting (TS) waves can be attenuated by the
introduction of spanwise mean velocity gradients in an otherwise two-dimensional boundary …

Stabilization of the hypersonic boundary layer by finite-amplitude streaks

J Ren, S Fu, A Hanifi - Physics of Fluids, 2016 - pubs.aip.org
Stabilization of two-dimensional disturbances in hypersonic boundary layer flows by finite-
amplitude streaks is investigated using nonlinear parabolized stability equations. The …

[HTML][HTML] Mitigation of transonic shock buffet on a supercritical airfoil through wavy leading edges

E Degregori, JW Kim - Physics of Fluids, 2021 - pubs.aip.org
Mitigation of the shock buffet phenomenon over a supercritical airfoil by means of wavy
leading edges (WLEs) is analyzed with implicit large eddy simulations. A Dassault Aviation's …

Investigation of the influence of miniature vortex generators on the large-scale motions of a turbulent boundary layer

CI Chan, RC Chin - Journal of Fluid Mechanics, 2022 - cambridge.org
Well resolved large-eddy simulation data are used to study the physical modulation effects
of miniature vortex generators (MVGs) in a moderate Reynolds number zero pressure …

An investigation on a supercritical aerofoil with a wavy leading edge in a transonic flow

E Degregori, JW Kim - Physics of Fluids, 2020 - pubs.aip.org
A compressible large-eddy simulation is performed to study the effects of a wavy leading
edge (WLE) applied on a supercritical aerofoil in a transonic flow at Re∞= 5.0× 10 5 and …

On the scaling of streamwise streaks and their efficiency to attenuate Tollmien–Schlichting waves

SS Sattarzadeh, JHM Fransson - Experiments in Fluids, 2015 - Springer
Streaky boundary layers generated by an array of miniature vortex generators (MVGs)
mounted on a flat plate have recently shown to have a stabilizing effect on both two-and …