Wake dynamics and flow-induced vibration of a freely rolling cylinder

Houdroge, Farah; Leweke, Thomas; Hourigan, Kerry; Thompson, Mark C.

doi:10.1017/jfm.2020.631

Cited by 6 publications

(58 citation statements)

References 70 publications

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“…These increases represent an added resistance to acceleration of the bodies, which should act to mitigate VIV to some extent. However, there are also dramatic changes in the wake structures, for both rolling cylinders (Houdroge et al 2020a) and rolling spheres (Houdroge et al 2020b), at least in the low-Reynolds number range. These bodies are found to undergo increasing VIV about their mean rolling speed with decreasing ratio of body and fluid densities, interestingly with spheres having considerably smaller vibration amplitudes than cylinders.…”

Section: Vortex-induced Vibration Of Rolling Bodiesmentioning

confidence: 99%

Bluff Bodies and Wake–Wall Interactions

Thompson

Leweke

Hourigan

2021

Annu. Rev. Fluid Mech.

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This review surveys the dramatic variations in wake structures and flow transitions, in addition to body forces, that appear as the motion of bluff bodies through a fluid occurs increasingly closer to a solid wall. In particular, we discuss the two cases of bluff bodies translating parallel to solid walls at varying heights and bluff bodies impacting on solid walls. In the former case, we highlight the changes to the wake structures as the flow varies from that of an isolated body to that of a body on or very close to the wall, including the effects when the body is rotating. For the latter case of an impacting body, we review the flow structures following impact and their transition to three-dimensionality. We discuss the issue of whether there is solid–solid contact between the bluff body and a wall and its importance to body motion. Expected final online publication date for the Annual Review of Fluid Mechanics, Volume 53 is January 6, 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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Section: Vortex-induced Vibration Of Rolling Bodiesmentioning

confidence: 99%

Bluff Bodies and Wake–Wall Interactions

Thompson

Leweke

Hourigan

2021

Annu. Rev. Fluid Mech.

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“…In particular, the drag force becomes infinite as the gap approaches zero, therefore a smooth sphere or cylinder would be unable to move while in contact with a smooth wall. In order for the particle to travel along the surface, a finite gap between the particle and the wall must be established, by cavitation (Prokunin 2003;Ashmore, Del Pino & Mullin 2005), surface roughness (Smart, Beimfohr & Leighton 1993;Galvin, Zhao & Davis 2001;Thompson, Leweke & Hourigan 2021;Houdroge et al 2023) or compressibility (Terrington, Thompson & Hourigan 2022).…”

Section: Introductionmentioning

confidence: 99%

“…For moderate and high Reynolds number flows, however, numerical simulations are required to predict the hydrodynamic forces and moments applied to the rolling body. Numerical simulations of the flow over a translating or rolling cylinder have been presented by Stewart et al (2006Stewart et al ( , 2010b, Rao et al (2011) and Houdroge et al (2017Houdroge et al ( , 2020, while numerical simulations of the flow over a rolling sphere are presented by Zeng et al (2009), Stewart et al (2010a) and Houdroge et al (2016Houdroge et al ( , 2023.…”

Section: Introductionmentioning

confidence: 99%

“…Stewart et al (2006Stewart et al ( , 2010a, Rao et al (2011) and Houdroge et al (2017) consider only a single gap ratio, noting that the flow far from the gap is approximately independent of the gap ratio. While the gap ratio effect is considered by Houdroge et al (2020Houdroge et al ( , 2023, these studies are restricted to cylinders and spheres that roll without slipping (k = 1). Slip has been observed experimentally, for both spheres (Smart et al 1993;Yang et al 2006) and cylinders , for certain ranges of the governing parameters, therefore a complete dynamical model for the motion of the particle requires the dependence of the force and moment coefficients against all three parameters: G/d, k and Re.…”

Section: Introductionmentioning

confidence: 99%

“…As the gap ratio is reduced, a progressively finer numerical mesh is needed to capture adequately the interstitial flow, therefore numerical simulations become impractical for a sufficiently small gap ratio. For example, Houdroge et al (2023) perform simulations of the rolling sphere to a minimum gap ratio 2 × 10 −4 , which is substantially larger than the gap ratios of order 10 −6 required to match their experimental measurements. Therefore, numerical simulation of the entire flow, including both the outer flow and the interstitial flow, is impractical for many experimental conditions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The inner and outer solutions to the inertial flow over a rolling circular cylinder

2023

Self Cite

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This paper proposes a new approach for evaluating numerically the forces and moments applied to a circular cylinder that is immersed in a fluid and which translates and rotates near a plane wall. Under the proposed approach, the flow is decomposed into inner and outer flows. The inner flow represents the flow in the thin interstice between the cylinder and the wall, and is obtained as an analytic expression using lubrication theory. The outer flow represents the flow far from the interstice, which does not depend on the magnitude of the gap between the cylinder and the wall, when the gap is small. The outer flow is obtained using numerical simulation as a function of both the Reynolds number and the slip coefficient. The force and moment coefficients are then obtained, as functions of the Reynolds number, slip coefficient and gap-to-diameter ratio, by combining the inner and outer solutions. Importantly, since the outer flow does not depend on the gap-to-diameter ratio, the parameter space to be explored by numerical simulations is greatly reduced compared to using finite gap ratio simulations. Moreover, the numerical difficulties associated with resolving the interstitial flow are avoided. The proposed approach can be extended to a wide range of rolling bodies, including spherical particles and wheels, and should significantly reduce the computational expense required to model the hydrodynamic forces and predict the subsequent motion of such bodies.

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Direct numerical simulation of different finite cylinders rolling on a horizontal surface: The thickness effects on the aerodynamics

Javadi

2022

Computers & Fluids

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Wake dynamics and flow-induced vibration of a freely rolling cylinder

Abstract: Abstract

Cited by 6 publications

References 70 publications

Bluff Bodies and Wake–Wall Interactions

Bluff Bodies and Wake–Wall Interactions

The inner and outer solutions to the inertial flow over a rolling circular cylinder

Direct numerical simulation of different finite cylinders rolling on a horizontal surface: The thickness effects on the aerodynamics

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