Falling cards and flapping flags: Understanding fluid-solid interactions using an unsteady point vortex model

Sébastien Michelin; Stefan G. Llewellyn Smith

doi:10.1007/s00162-009-0117-6

Falling cards and flapping flags: Understanding fluid-solid interactions using an unsteady point vortex model

Sébastien Michelin, Stefan G. Llewellyn Smith

Research output: Contribution to journal › Article › peer-review

Abstract

A reduced-order model for the two-dimensional interaction of a sharp-edged solid body and a high-Reynolds number flow is presented, based on the inviscid representation of the solid's wake as point vortices with unsteady intensity. This model is applied to the fall of a rigid card in a fluid and to the flapping instability of a flexible membrane forced by a parallel flow.

Original language	English
Pages (from-to)	195-200
Number of pages	6
Journal	Theoretical and Computational Fluid Dynamics
Volume	24
Issue number	1-4
DOIs	https://doi.org/10.1007/s00162-009-0117-6
Publication status	Published - 1 Jan 2010
Externally published	Yes

Keywords

Fluid-solid interaction
Point vortex
Vortex shedding

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10.1007/s00162-009-0117-6

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title = "Falling cards and flapping flags: Understanding fluid-solid interactions using an unsteady point vortex model",

abstract = "A reduced-order model for the two-dimensional interaction of a sharp-edged solid body and a high-Reynolds number flow is presented, based on the inviscid representation of the solid's wake as point vortices with unsteady intensity. This model is applied to the fall of a rigid card in a fluid and to the flapping instability of a flexible membrane forced by a parallel flow.",

keywords = "Fluid-solid interaction, Point vortex, Vortex shedding",

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year = "2010",

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AU - Llewellyn Smith, Stefan G.

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N2 - A reduced-order model for the two-dimensional interaction of a sharp-edged solid body and a high-Reynolds number flow is presented, based on the inviscid representation of the solid's wake as point vortices with unsteady intensity. This model is applied to the fall of a rigid card in a fluid and to the flapping instability of a flexible membrane forced by a parallel flow.

AB - A reduced-order model for the two-dimensional interaction of a sharp-edged solid body and a high-Reynolds number flow is presented, based on the inviscid representation of the solid's wake as point vortices with unsteady intensity. This model is applied to the fall of a rigid card in a fluid and to the flapping instability of a flexible membrane forced by a parallel flow.

KW - Fluid-solid interaction

KW - Point vortex

KW - Vortex shedding

U2 - 10.1007/s00162-009-0117-6

DO - 10.1007/s00162-009-0117-6

M3 - Article

AN - SCOPUS:77949425136

SN - 0935-4964

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EP - 200

JO - Theoretical and Computational Fluid Dynamics

JF - Theoretical and Computational Fluid Dynamics

IS - 1-4

ER -

Falling cards and flapping flags: Understanding fluid-solid interactions using an unsteady point vortex model

Abstract

Keywords

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