A review of turbulent skin-friction drag reduction by near-wall transverse forcing
The quest for reductions in fuel consumption and CO 2 emissions in transport has been a
powerful driving force for scientific research into methods that might underpin drag-reducing …
powerful driving force for scientific research into methods that might underpin drag-reducing …
Drag reduction in turbulent boundary layers by in-plane wall motion
M Quadrio - … Transactions of the Royal Society A …, 2011 - royalsocietypublishing.org
Drag-reduction techniques capable of reducing the level of turbulent friction through wall-
parallel movement of the wall are described, with special emphasis placed on spanwise …
parallel movement of the wall are described, with special emphasis placed on spanwise …
Active and passive turbulent boundary-layer drag reduction
A 50 year journey through flow control strategies that seek to achieve viscous drag reduction
in turbulent boundary layers is presented. These are shown to focus on different …
in turbulent boundary layers is presented. These are shown to focus on different …
Critical assessment of turbulent drag reduction through spanwise wall oscillations
M Quadrio, P Ricco - Journal of Fluid Mechanics, 2004 - cambridge.org
Direct numerical simulations of the incompressible Navier–Stokes equations are employed
to study the turbulent wall-shear stress in a turbulent channel flow forced by lateral …
to study the turbulent wall-shear stress in a turbulent channel flow forced by lateral …
Streamwise-travelling waves of spanwise wall velocity for turbulent drag reduction
M Quadrio, P Ricco, C Viotti - Journal of Fluid Mechanics, 2009 - cambridge.org
Waves of spanwise velocity imposed at the walls of a plane turbulent channel flow are
studied by direct numerical simulations. We consider sinusoidal waves of spanwise velocity …
studied by direct numerical simulations. We consider sinusoidal waves of spanwise velocity …
Reynolds-number dependence of turbulent skin-friction drag reduction induced by spanwise forcing
D Gatti, M Quadrio - Journal of Fluid Mechanics, 2016 - cambridge.org
Reynolds-number dependence of turbulent skin-friction drag reduction induced by
spanwise forcing Page 1 J. Fluid Mech. (2016), vol. 802, pp. 553–582. c Cambridge …
spanwise forcing Page 1 J. Fluid Mech. (2016), vol. 802, pp. 553–582. c Cambridge …
Near-wall streak modification by spanwise oscillatory wall motion and drag-reduction mechanisms
E Touber, MA Leschziner - Journal of Fluid Mechanics, 2012 - cambridge.org
Direct numerical simulations for fully developed channel flow, subjected to oscillatory
spanwise wall motion, have been performed and analysed in an effort to illuminate the …
spanwise wall motion, have been performed and analysed in an effort to illuminate the …
Active cancellation of artificially introduced Tollmien–Schlichting waves using plasma actuators
In the present work artificially excited Tollmien–Schlichting (TS) waves were cancelled using
plasma actuators operated in pulsed mode. In order to achieve this a vibrating surface …
plasma actuators operated in pulsed mode. In order to achieve this a vibrating surface …
Characteristics of drag-reduced turbulent boundary layers with pulsed-direct-current plasma actuation
Experiments were performed using an active flow control approach that has shown the
ability to significantly reduce the viscous drag in turbulent boundary layers. The purpose of …
ability to significantly reduce the viscous drag in turbulent boundary layers. The purpose of …
Streamwise oscillation of spanwise velocity at the wall of a channel for turbulent drag reduction
C Viotti, M Quadrio, P Luchini - Physics of fluids, 2009 - pubs.aip.org
Steady forcing at the wall of a channel flow is studied via direct numerical simulation to
assess its ability of yielding reductions in turbulent friction drag. The wall forcing consists of a …
assess its ability of yielding reductions in turbulent friction drag. The wall forcing consists of a …