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 …
Active control for wall drag reduction: Methods, mechanisms and performance
L Zhang, X Shan, T Xie - IEEE Access, 2020 - ieeexplore.ieee.org
Active reducing the skin friction drag of vehicles (such as missiles, rockets, aircraft, high-
speed train, submarines, etc.) during the navigation process can improve the respond speed …
speed train, submarines, etc.) during the navigation process can improve the respond speed …
Magnetic fluid film enables almost complete drag reduction across laminar and turbulent flow regimes
In the race to curb energy and oil consumption, zeroing of wall frictional forces is highly
desirable. The turbulent skin friction drag at the solid/liquid interface is responsible for …
desirable. The turbulent skin friction drag at the solid/liquid interface is responsible for …
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 …
spanwise wall velocity, produced using a novel active surface, is outlined in this paper. The …
Analysis of a drag reduced flat plate turbulent boundary layer via uniform momentum zones
High spatial resolution particle-image velocimetry (PIV) and micro-particle tracking
velocimetry (μ-PTV) measurements have been performed to analyze the flow structures in a …
velocimetry (μ-PTV) measurements have been performed to analyze the flow structures in a …
Turbulent drag reduction by spanwise traveling ribbed surface waves
The combination of passive and active drag reduction techniques is investigated by particle-
image velocimetry (PIV) and micro-particle tracking velocimetry (μ-PTV) measurements. To …
image velocimetry (PIV) and micro-particle tracking velocimetry (μ-PTV) measurements. To …
Laminar and turbulent flows over hydrophobic surfaces with shear-dependent slip length
S Khosh Aghdam, P Ricco - Physics of Fluids, 2016 - pubs.aip.org
Motivated by extensive discussion in the literature, by experimental evidence and by recent
direct numerical simulations, we study flows over hydrophobic surfaces with shear …
direct numerical simulations, we study flows over hydrophobic surfaces with shear …
Parametric investigation of friction drag reduction in turbulent flow over a flexible wall undergoing spanwise transversal traveling waves
W Li, D Roggenkamp, T Hecken, W Jessen… - Experiments in …, 2018 - Springer
Active friction drag reduction by spanwise transversal traveling surface waves is investigated
experimentally in a fully developed zero-pressure gradient (ZPG) turbulent boundary layer …
experimentally in a fully developed zero-pressure gradient (ZPG) turbulent boundary layer …
Laminar boundary layer forcing with active surface deformations
We experimentally evaluate the use of active wall-normal surface deformations as a method
of actuation for the control of wall-bounded flows. Circular surface deformations are …
of actuation for the control of wall-bounded flows. Circular surface deformations are …
Active control of compressible channel flow up to using direct numerical simulations with spanwise velocity modulation at the walls
M Ruby, H Foysi - GAMM‐Mitteilungen, 2022 - Wiley Online Library
Active turbulence control has been pursued continuously for the last decades, striving for an
altered, energetically more favorable flow. In this article, our focus is on a promising method …
altered, energetically more favorable flow. In this article, our focus is on a promising method …