Model-based design of riblets for turbulent drag reduction

Both experiments and direct numerical simulations have been used to demonstrate that riblets can reduce turbulent drag by as much as $10\,\%$, but their systematic design remains an open challenge. In this paper we develop a model-based framework to quantify the effect of streamwise-aligned spanwise...

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Bibliographic Details
Published in:	Journal of fluid mechanics Vol. 906
Main Authors:	Ran, Wei, Zare, Armin, Jovanović, Mihailo R.
Format:	Journal Article
Language:	English
Published:	Cambridge, UK Cambridge University Press 10.01.2021
Subjects:	Channel flow Computational fluid dynamics Direct numerical simulation Drag Drag reduction Experiments Flow structures Fluid mechanics Friction Friction drag JFM Papers Kinetic energy Mathematical models Navier-Stokes equations Optimization Performance degradation Riblets Simulation Skin Skin friction Trends Turbulence Turbulence models Turbulent flow Velocity Viscosity Vortices turbulence control drag reduction turbulence modelling
ISSN:	0022-1120, 1469-7645
Online Access:	Get full text
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