A review of turbulent skin-friction drag reduction by near-wall transverse forcing

P Ricco, M Skote, MA Leschziner - Progress in Aerospace Sciences, 2021 - Elsevier
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 …

Friction-drag reduction by transverse wall motion–a review

MA Leschziner - Journal of Mechanics, 2020 - cambridge.org
The quest for drag reduction is driven by environmental concerns, in general, and the need
to reduce fuel consumption in transport applications, in particular. Turbulent friction is …

Stokes-layer formation under absence of moving parts—A novel oscillatory plasma actuator design for turbulent drag reduction

MT Hehner, D Gatti, J Kriegseis - Physics of Fluids, 2019 - pubs.aip.org
ABSTRACT A novel plasma actuator concept is proposed to mimic the effect of spanwise
wall oscillations without mechanically moving parts, where four groups of electrodes and …

MHD mixed convection of hybrid nanofluid in a wavy porous cavity employing local thermal non-equilibrium condition

Z Raizah, AM Aly, N Alsedais, MA Mansour - Scientific Reports, 2021 - nature.com
The current study treats the magnetic field impacts on the mixed convection flow within an
undulating cavity filled by hybrid nanofluids and porous media. The local thermal non …

A composite dynamic mode decomposition analysis of turbulent channel flows

J Garicano-Mena, B Li, E Ferrer, E Valero - Physics of Fluids, 2019 - pubs.aip.org
In this contribution, we consider the Dynamic Mode Decomposition (DMD) framework as a
purely data-driven tool to investigate both standard and actuated turbulent channel …

Drag control in wall-bounded turbulent flows via spanwise opposed wall-jet forcing

J Yao, X Chen, F Hussain - Journal of Fluid Mechanics, 2018 - cambridge.org
Drag control using a newly developed spanwise opposed wall-jet forcing (SOJF) method is
studied via direct numerical simulation of the incompressible Navier–Stokes equations in a …

Reynolds number effect on drag control via spanwise wall oscillation in turbulent channel flows

J Yao, X Chen, F Hussain - Physics of Fluids, 2019 - pubs.aip.org
The effect of Reynolds number (Re τ) on drag reduction using spanwise wall oscillation is
studied through direct numerical simulation of incompressible turbulent channel flows with …

Drag reduction and energy saving by spanwise traveling transversal surface waves for flat plate flow

M Albers, PS Meysonnat, D Fernex, R Semaan… - Flow, Turbulence and …, 2020 - Springer
Wall-resolved large-eddy simulations are performed to study the impact of spanwise
traveling transversal surface waves in zero-pressure gradient turbulent boundary layer flow …

Experimental control of turbulent boundary layers with in-plane travelling waves

J Bird, M Santer, JF Morrison - Flow, turbulence and combustion, 2018 - Springer
The experimental control of turbulent boundary layers using streamwise travelling waves of
spanwise wall velocity, produced using a novel active surface, is outlined in this paper. The …

Drag reduction in turbulent channel flows by a spanwise traveling wave of wall blowing and suction

Y Huang, L Wang, S Fu - Physics of Fluids, 2021 - pubs.aip.org
A spanwise traveling wave, generated by blowing and suction at walls, is applied in direct
numerical simulations to reduce the drag in a fully developed turbulent channel flow with R e …