Numerical simulation of the flow around a circular cylinder at high Reynolds numbers

Catalano, Pietro; Wang, Meng; Iaccarino, Gianluca; Moin, Parviz

doi:10.1016/s0142-727x(03)00061-4

Cited by 281 publications

(201 citation statements)

References 12 publications

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“…In the Reynolds number range of 10,000 to 40,000, the drag coefficient of a plain rod is ~1 29 . Drag coefficient results on cylinders with various roughness parameters, k/D = roughness scale/cylinder diameter, has also been widely researched [30][31][32][33] .…”

Section: Introductionmentioning

confidence: 99%

Investigation of the drag reducing effect of hydrophobized sand on cylinders

Brennan

Fairhurst

Morris

et al. 2014

J. Phys. D: Appl. Phys.

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Northumbria University has developed Northumbria Research Link (NRL) to enable users to access the University's research output. Copyright © and moral rights for items on NRL are retained by the individual author(s) and/or other copyright owners. Single copies of full items can be reproduced, displayed or performed, and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided the authors, title and full bibliographic details are given, as well as a hyperlink and/or URL to the original metadata page. The content must not be changed in any way. Full items must not be sold commercially in any format or medium without formal permission of the copyright holder. The full policy is available online: http://nrl.northumbria.ac.uk/policies.html This document may differ from the final, published version of the research and has been made available online in accordance with publisher policies. To read and/or cite from the published version of the research, please visit the publisher's website (a subscription may be required.) compared to the same sample in the Wenzel state for flows with Reynolds numbers of 10,000 to 40,000. These drag reduction results, in combination with confocal microscopy images of the plastron air layer and feature height, show that the thickness of the plastron and the protrusion height of the features combine to give a drag reduction or drag increase depending on the ratio of the two.

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Section: Introductionmentioning

confidence: 99%

Investigation of the drag reducing effect of hydrophobized sand on cylinders

Brennan

Fairhurst

Morris

et al. 2014

J. Phys. D: Appl. Phys.

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“…Nevertheless, LES is rarely used for industrial applications. The main reason lies in the high grid resolution required to simulate highly turbulent wall bounded flows [42]. The small but dynamically important near-wall eddies impose restrictive requirements on the grid refinement near the wall, thus increasing computation time very much.…”

Section: Large Eddy Simulationsmentioning

confidence: 99%

Wind-structure interaction simulations of ovalling vibrations in silo groups

Hillewaere

Degroote

Lombaert

et al. 2015

Journal of Fluids and Structures

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“…A milestone as regards the comparison of the performances of RANS and LES approaches at high Reynolds number is [9]: vortex-shedding flow past a square cylinder at Re = 22.000 and of the 3D flow past a surface-mounted cube at Re = 40.000 are studied. In [10], the accuracy of LES with wall modelling for high Reynolds number complex turbulent flows is investigated by considering the flow around a circular cylinder in the supercritical regime. Particular attention is devoted to how the mismatch between experimental data and LES and RANS simulation results evolves with increasing Reynolds number.…”

Section: Introductionmentioning

confidence: 99%

Diagnosis of vortex induced vibration of a gravity damper

Scappaticci¹,

Castellani²,

Astolfi³

et al. 2018

Diagnostyka

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A gravity damper is a one-way valve, employed for regulating the airflow rate in ducts, generally constituted by a series of rectangular panels (closure sections), connected to an articulated quadrilateral synchronizing the movements. If the device needs to process large masses of high speed air, as common in the case of energy conversion systems, disadvantageous dynamic effects can occur. In this study, vortexinduced vibration (VIV), occurring on a gravity damper for high values of the Reynolds number, is investigated. The analysis of this work couples numerical methods (Computational Fluid Dynamics with Large-Eddy Simulation turbulence model and Finite Element Method) to experiments: a full-scale accelerometric measurement campaign is actually performed at the wind tunnel facilities of the University of Perugia. VIVs are diagnosed and quantified through the experimental vibration analysis, which is interpreted through numerical simulations. The large amplitude of VIV is interpreted as due to a tendency towards lockin because of the approaching of the vortex shedding frequency to a natural vibration mode of the system. The integrated numerical and experimental framework finally inspires two different design solutions for mitigating the amplitude of VIV: these strategies are tested at the wind tunnel and they are indeed shown to be effective.

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Numerical simulation of the flow around a circular cylinder at high Reynolds numbers

Cited by 281 publications

References 12 publications

Investigation of the drag reducing effect of hydrophobized sand on cylinders

Investigation of the drag reducing effect of hydrophobized sand on cylinders

Wind-structure interaction simulations of ovalling vibrations in silo groups

Diagnosis of vortex induced vibration of a gravity damper

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