AustralieFrV1, PascalFrancis, Corpus, bibRecord, 000788

Wake states and frequency selection of a streamwise oscillating cylinder

Identifieur interne : 000788 ( PascalFrancis/Corpus ); précédent : 000787; suivant : 000789

Wake states and frequency selection of a streamwise oscillating cylinder

Auteurs : Justin S. Leontini ; David Lo Jacono ; Mark C. Thompson

Source :

Journal of Fluid Mechanics [ 0022-1120 ] ; 2013.

RBID : Pascal:13-0322476

Descripteurs français

Pascal (Inist)
- Ecoulement tourbillonnaire, Détachement tourbillonnaire, Interaction fluide structure, Sillage, Cylindre oscillant, Modélisation, Simulation numérique, Oscillation périodique, 4640, 4732F.

English descriptors

KwdEn :
- Fluid structure interaction, Modeling, Numerical simulation, Oscillating cylinder, Periodic oscillation, Swirling flow, Vortex shedding, Wake.

Abstract

This paper presents the results of an in-depth study of the flow past a streamwise oscillating cylinder, examining the impact of varying the amplitude and frequency of the oscillation, and the Reynolds number of the incoming flow. These findings are presented in a framework that shows that the relationship between the frequency of vortex shedding f_s and the amplitude of oscillation A^* is governed by two primary factors: the first is a reduction of f_sproportional to a series in A^*2 over a wide range of driving frequencies and Reynolds numbers; the second is nonlinear synchronization when this adjusted f_s is in the vicinity of N = (1 -f_s/f_d)^-1, where N is an integer. Typically, the influence of higher-order terms is small, and truncation to the first term of the series (A^*2) well represents the overall trend of vortex shedding frequency as a function of amplitude. However, discontinuous steps are overlaid on this trend due to the nonlinear synchronization. When f_s is normalized by the Strouhal frequency f_St (the frequency of vortex shedding from an unperturbed cylinder), the rate at which f_s/f_St decreases with amplitude, at least for f_d/f_St = 1, shows a linear dependence on the Reynolds number. For a fixed Re = 175, the truncated series shows that the rate of decrease of f_s/f_St with amplitude varies as (2 -f_d/f_St)^-1/2 for 1 ≤f_d/f_St ≤ 2, but is essentially independent of f_d/f_St for f_d/f_St < 1. These trends of the rate of decrease of f_s with respect to amplitude are also used to predict the amplitudes of oscillation around which synchronization occurs. These predicted amplitudes are shown to fall in regions of the parameter space where synchronized modes occur. Further, for the case of varying f_d/f_St, a very reasonable prediction of the amplitude of oscillation required for the onset of synchronization to the mode where f_s = 0.5f_d is given. In a similar manner, amplitudes at which f_s = 0 are calculated, predicting where the natural vortex shedding is completely supplanted by the forcing. These amplitudes are found to coincide approximately with those at which the onset of a symmetric vortex shedding mode is observed. This result is interpreted as meaning that the symmetric shedding mode occurs when the dynamics crosses over from being dominated by the vortex shedding to being dominated by the forcing.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

A01	`01`	`1`		`@0 0022-1120`
A02	`01`			`@0 JFLSA7`
A03		`1`		`@0 J. Fluid Mech.`
A05				`@2 730`
A08	`01`	`1`	`ENG`	`@1 Wake states and frequency selection of a streamwise oscillating cylinder`
A11	`01`	`1`		`@1 LEONTINI (Justin S.)`
A11	`02`	`1`		`@1 LO JACONO (David)`
A11	`03`	`1`		`@1 THOMPSON (Mark C.)`
A14	`01`			`@1 Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering, Monash University @2 Melbourne, VIC 3800 @3 AUS @Z 1 aut. @Z 2 aut. @Z 3 aut.`
A14	`02`			`@1 Institut de Mécanique des Fluides de Toulouse (IMFT), CNRS, UPS, Université de Toulouse, Allée Camille Soula @2 31400 Toulouse @3 FRA @Z 2 aut.`
A20				`@1 162-192`
A21				`@1 2013`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 5180 @5 354000501989290080`
A44				`@0 0000 @1 © 2013 INIST-CNRS. All rights reserved.`
A45				`@0 1 p.3/4`
A47	`01`	`1`		`@0 13-0322476`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Journal of Fluid Mechanics`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 This paper presents the results of an in-depth study of the flow past a streamwise oscillating cylinder, examining the impact of varying the amplitude and frequency of the oscillation, and the Reynolds number of the incoming flow. These findings are presented in a framework that shows that the relationship between the frequency of vortex shedding f_s and the amplitude of oscillation A^* is governed by two primary factors: the first is a reduction of f_sproportional to a series in A^2 over a wide range of driving frequencies and Reynolds numbers; the second is nonlinear synchronization when this adjusted f_s is in the vicinity of N = (1 -f_s/f_d)^-1, where N is an integer. Typically, the influence of higher-order terms is small, and truncation to the first term of the series (A^2) well represents the overall trend of vortex shedding frequency as a function of amplitude. However, discontinuous steps are overlaid on this trend due to the nonlinear synchronization. When f_s is normalized by the Strouhal frequency f_St (the frequency of vortex shedding from an unperturbed cylinder), the rate at which f_s/f_St decreases with amplitude, at least for f_d/f_St = 1, shows a linear dependence on the Reynolds number. For a fixed Re = 175, the truncated series shows that the rate of decrease of f_s/f_St with amplitude varies as (2 -f_d/f_St)^-1/2 for 1 ≤f_d/f_St ≤ 2, but is essentially independent of f_d/f_St for f_d/f_St < 1. These trends of the rate of decrease of f_s with respect to amplitude are also used to predict the amplitudes of oscillation around which synchronization occurs. These predicted amplitudes are shown to fall in regions of the parameter space where synchronized modes occur. Further, for the case of varying f_d/f_St, a very reasonable prediction of the amplitude of oscillation required for the onset of synchronization to the mode where f_s = 0.5f_d is given. In a similar manner, amplitudes at which f_s = 0 are calculated, predicting where the natural vortex shedding is completely supplanted by the forcing. These amplitudes are found to coincide approximately with those at which the onset of a symmetric vortex shedding mode is observed. This result is interpreted as meaning that the symmetric shedding mode occurs when the dynamics crosses over from being dominated by the vortex shedding to being dominated by the forcing.
C02	`01`	`X`		`@0 001B40F30M`
C02	`02`	`3`		`@0 001B40G32F`
C03	`01`	`X`	`FRE`	`@0 Ecoulement tourbillonnaire @5 02`
C03	`01`	`X`	`ENG`	`@0 Swirling flow @5 02`
C03	`01`	`X`	`SPA`	`@0 Flujo torbellinal @5 02`
C03	`02`	`X`	`FRE`	`@0 Détachement tourbillonnaire @5 03`
C03	`02`	`X`	`ENG`	`@0 Vortex shedding @5 03`
C03	`02`	`X`	`SPA`	`@0 Desprendimiento vorticial @5 03`
C03	`03`	`X`	`FRE`	`@0 Interaction fluide structure @5 04`
C03	`03`	`X`	`ENG`	`@0 Fluid structure interaction @5 04`
C03	`03`	`X`	`SPA`	`@0 Interacción fluido estructura @5 04`
C03	`04`	`X`	`FRE`	`@0 Sillage @5 08`
C03	`04`	`X`	`ENG`	`@0 Wake @5 08`
C03	`04`	`X`	`SPA`	`@0 Estela (marina) @5 08`
C03	`05`	`X`	`FRE`	`@0 Cylindre oscillant @5 09`
C03	`05`	`X`	`ENG`	`@0 Oscillating cylinder @5 09`
C03	`05`	`X`	`SPA`	`@0 Cilindro oscilante @5 09`
C03	`06`	`X`	`FRE`	`@0 Modélisation @5 15`
C03	`06`	`X`	`ENG`	`@0 Modeling @5 15`
C03	`06`	`X`	`SPA`	`@0 Modelización @5 15`
C03	`07`	`X`	`FRE`	`@0 Simulation numérique @5 16`
C03	`07`	`X`	`ENG`	`@0 Numerical simulation @5 16`
C03	`07`	`X`	`SPA`	`@0 Simulación numérica @5 16`
C03	`08`	`X`	`FRE`	`@0 Oscillation périodique @5 29`
C03	`08`	`X`	`ENG`	`@0 Periodic oscillation @5 29`
C03	`08`	`X`	`SPA`	`@0 Oscilación periódica @5 29`
C03	`09`	`X`	`FRE`	`@0 4640 @4 INC @5 56`
C03	`10`	`X`	`FRE`	`@0 4732F @4 INC @5 57`
N21				`@1 301`

Format Inist (serveur)

NO :	PASCAL 13-0322476 INIST
ET :	Wake states and frequency selection of a streamwise oscillating cylinder
AU :	LEONTINI (Justin S.); LO JACONO (David); THOMPSON (Mark C.)
AF :	Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering, Monash University/Melbourne, VIC 3800/Australie (1 aut., 2 aut., 3 aut.); Institut de Mécanique des Fluides de Toulouse (IMFT), CNRS, UPS, Université de Toulouse, Allée Camille Soula/31400 Toulouse/France (2 aut.)
DT :	Publication en série; Niveau analytique
SO :	Journal of Fluid Mechanics; ISSN 0022-1120; Coden JFLSA7; Royaume-Uni; Da. 2013; Vol. 730; Pp. 162-192; Bibl. 1 p.3/4
LA :	Anglais
EA :	This paper presents the results of an in-depth study of the flow past a streamwise oscillating cylinder, examining the impact of varying the amplitude and frequency of the oscillation, and the Reynolds number of the incoming flow. These findings are presented in a framework that shows that the relationship between the frequency of vortex shedding f_s and the amplitude of oscillation A^* is governed by two primary factors: the first is a reduction of f_sproportional to a series in A^2 over a wide range of driving frequencies and Reynolds numbers; the second is nonlinear synchronization when this adjusted f_s is in the vicinity of N = (1 -f_s/f_d)^-1, where N is an integer. Typically, the influence of higher-order terms is small, and truncation to the first term of the series (A^2) well represents the overall trend of vortex shedding frequency as a function of amplitude. However, discontinuous steps are overlaid on this trend due to the nonlinear synchronization. When f_s is normalized by the Strouhal frequency f_St (the frequency of vortex shedding from an unperturbed cylinder), the rate at which f_s/f_St decreases with amplitude, at least for f_d/f_St = 1, shows a linear dependence on the Reynolds number. For a fixed Re = 175, the truncated series shows that the rate of decrease of f_s/f_St with amplitude varies as (2 -f_d/f_St)^-1/2 for 1 ≤f_d/f_St ≤ 2, but is essentially independent of f_d/f_St for f_d/f_St < 1. These trends of the rate of decrease of f_s with respect to amplitude are also used to predict the amplitudes of oscillation around which synchronization occurs. These predicted amplitudes are shown to fall in regions of the parameter space where synchronized modes occur. Further, for the case of varying f_d/f_St, a very reasonable prediction of the amplitude of oscillation required for the onset of synchronization to the mode where f_s = 0.5f_d is given. In a similar manner, amplitudes at which f_s = 0 are calculated, predicting where the natural vortex shedding is completely supplanted by the forcing. These amplitudes are found to coincide approximately with those at which the onset of a symmetric vortex shedding mode is observed. This result is interpreted as meaning that the symmetric shedding mode occurs when the dynamics crosses over from being dominated by the vortex shedding to being dominated by the forcing.
CC :	001B40F30M; 001B40G32F
FD :	Ecoulement tourbillonnaire; Détachement tourbillonnaire; Interaction fluide structure; Sillage; Cylindre oscillant; Modélisation; Simulation numérique; Oscillation périodique; 4640; 4732F
ED :	Swirling flow; Vortex shedding; Fluid structure interaction; Wake; Oscillating cylinder; Modeling; Numerical simulation; Periodic oscillation
SD :	Flujo torbellinal; Desprendimiento vorticial; Interacción fluido estructura; Estela (marina); Cilindro oscilante; Modelización; Simulación numérica; Oscilación periódica
LO :	INIST-5180.354000501989290080
ID :	13-0322476

Links to Exploration step

Pascal:13-0322476

Le document en format XML

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<front><div type="abstract" xml:lang="en">This paper presents the results of an in-depth study of the flow past a streamwise oscillating cylinder, examining the impact of varying the amplitude and frequency of the oscillation, and the Reynolds number of the incoming flow. These findings are presented in a framework that shows that the relationship between the frequency of vortex shedding f<sub>s</sub>
 and the amplitude of oscillation A<sup>*</sup>
 is governed by two primary factors: the first is a reduction of f<sub>s </sub>
proportional to a series in A<sup>*2</sup>
 over a wide range of driving frequencies and Reynolds numbers; the second is nonlinear synchronization when this adjusted f<sub>s</sub>
 is in the vicinity of N = (1 -f<sub>s</sub>
/f<sub>d</sub>
)<sup>-1</sup>
, where N is an integer. Typically, the influence of higher-order terms is small, and truncation to the first term of the series (A<sup>*2</sup>
) well represents the overall trend of vortex shedding frequency as a function of amplitude. However, discontinuous steps are overlaid on this trend due to the nonlinear synchronization. When f<sub>s</sub>
 is normalized by the Strouhal frequency f<sub>St</sub>
 (the frequency of vortex shedding from an unperturbed cylinder), the rate at which f<sub>s</sub>
/f<sub>St</sub>
 decreases with amplitude, at least for f<sub>d</sub>
/f<sub>St</sub>
 = 1, shows a linear dependence on the Reynolds number. For a fixed Re = 175, the truncated series shows that the rate of decrease of f<sub>s</sub>
/f<sub>St</sub>
 with amplitude varies as (2 -f<sub>d</sub>
/f<sub>St</sub>
)<sup>-1/2</sup>
 for 1 ≤f<sub>d</sub>
/f<sub>St</sub>
 ≤ 2, but is essentially independent of f<sub>d</sub>
/f<sub>St</sub>
 for f<sub>d</sub>
/f<sub>St</sub>
 < 1. These trends of the rate of decrease of f<sub>s</sub>
 with respect to amplitude are also used to predict the amplitudes of oscillation around which synchronization occurs. These predicted amplitudes are shown to fall in regions of the parameter space where synchronized modes occur. Further, for the case of varying f<sub>d</sub>
/f<sub>St</sub>
, a very reasonable prediction of the amplitude of oscillation required for the onset of synchronization to the mode where f<sub>s</sub>
 = 0.5f<sub>d</sub>
 is given. In a similar manner, amplitudes at which f<sub>s</sub>
 = 0 are calculated, predicting where the natural vortex shedding is completely supplanted by the forcing. These amplitudes are found to coincide approximately with those at which the onset of a symmetric vortex shedding mode is observed. This result is interpreted as meaning that the symmetric shedding mode occurs when the dynamics crosses over from being dominated by the vortex shedding to being dominated by the forcing.</div>
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<fC01 i1="01" l="ENG"><s0>This paper presents the results of an in-depth study of the flow past a streamwise oscillating cylinder, examining the impact of varying the amplitude and frequency of the oscillation, and the Reynolds number of the incoming flow. These findings are presented in a framework that shows that the relationship between the frequency of vortex shedding f<sub>s</sub>
 and the amplitude of oscillation A<sup>*</sup>
 is governed by two primary factors: the first is a reduction of f<sub>s </sub>
proportional to a series in A<sup>*2</sup>
 over a wide range of driving frequencies and Reynolds numbers; the second is nonlinear synchronization when this adjusted f<sub>s</sub>
 is in the vicinity of N = (1 -f<sub>s</sub>
/f<sub>d</sub>
)<sup>-1</sup>
, where N is an integer. Typically, the influence of higher-order terms is small, and truncation to the first term of the series (A<sup>*2</sup>
) well represents the overall trend of vortex shedding frequency as a function of amplitude. However, discontinuous steps are overlaid on this trend due to the nonlinear synchronization. When f<sub>s</sub>
 is normalized by the Strouhal frequency f<sub>St</sub>
 (the frequency of vortex shedding from an unperturbed cylinder), the rate at which f<sub>s</sub>
/f<sub>St</sub>
 decreases with amplitude, at least for f<sub>d</sub>
/f<sub>St</sub>
 = 1, shows a linear dependence on the Reynolds number. For a fixed Re = 175, the truncated series shows that the rate of decrease of f<sub>s</sub>
/f<sub>St</sub>
 with amplitude varies as (2 -f<sub>d</sub>
/f<sub>St</sub>
)<sup>-1/2</sup>
 for 1 ≤f<sub>d</sub>
/f<sub>St</sub>
 ≤ 2, but is essentially independent of f<sub>d</sub>
/f<sub>St</sub>
 for f<sub>d</sub>
/f<sub>St</sub>
 < 1. These trends of the rate of decrease of f<sub>s</sub>
 with respect to amplitude are also used to predict the amplitudes of oscillation around which synchronization occurs. These predicted amplitudes are shown to fall in regions of the parameter space where synchronized modes occur. Further, for the case of varying f<sub>d</sub>
/f<sub>St</sub>
, a very reasonable prediction of the amplitude of oscillation required for the onset of synchronization to the mode where f<sub>s</sub>
 = 0.5f<sub>d</sub>
 is given. In a similar manner, amplitudes at which f<sub>s</sub>
 = 0 are calculated, predicting where the natural vortex shedding is completely supplanted by the forcing. These amplitudes are found to coincide approximately with those at which the onset of a symmetric vortex shedding mode is observed. This result is interpreted as meaning that the symmetric shedding mode occurs when the dynamics crosses over from being dominated by the vortex shedding to being dominated by the forcing.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>001B40F30M</s0>
</fC02>
<fC02 i1="02" i2="3"><s0>001B40G32F</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Ecoulement tourbillonnaire</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Swirling flow</s0>
<s5>02</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Flujo torbellinal</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Détachement tourbillonnaire</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Vortex shedding</s0>
<s5>03</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Desprendimiento vorticial</s0>
<s5>03</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Interaction fluide structure</s0>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Fluid structure interaction</s0>
<s5>04</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Interacción fluido estructura</s0>
<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Sillage</s0>
<s5>08</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Wake</s0>
<s5>08</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Estela (marina)</s0>
<s5>08</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Cylindre oscillant</s0>
<s5>09</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Oscillating cylinder</s0>
<s5>09</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Cilindro oscilante</s0>
<s5>09</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Modélisation</s0>
<s5>15</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Modeling</s0>
<s5>15</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Modelización</s0>
<s5>15</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Simulation numérique</s0>
<s5>16</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Numerical simulation</s0>
<s5>16</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Simulación numérica</s0>
<s5>16</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Oscillation périodique</s0>
<s5>29</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Periodic oscillation</s0>
<s5>29</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Oscilación periódica</s0>
<s5>29</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>4640</s0>
<s4>INC</s4>
<s5>56</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>4732F</s0>
<s4>INC</s4>
<s5>57</s5>
</fC03>
<fN21><s1>301</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 13-0322476 INIST</NO>
<ET>Wake states and frequency selection of a streamwise oscillating cylinder</ET>
<AU>LEONTINI (Justin S.); LO JACONO (David); THOMPSON (Mark C.)</AU>
<AF>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering, Monash University/Melbourne, VIC 3800/Australie (1 aut., 2 aut., 3 aut.); Institut de Mécanique des Fluides de Toulouse (IMFT), CNRS, UPS, Université de Toulouse, Allée Camille Soula/31400 Toulouse/France (2 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of Fluid Mechanics; ISSN 0022-1120; Coden JFLSA7; Royaume-Uni; Da. 2013; Vol. 730; Pp. 162-192; Bibl. 1 p.3/4</SO>
<LA>Anglais</LA>
<EA>This paper presents the results of an in-depth study of the flow past a streamwise oscillating cylinder, examining the impact of varying the amplitude and frequency of the oscillation, and the Reynolds number of the incoming flow. These findings are presented in a framework that shows that the relationship between the frequency of vortex shedding f<sub>s</sub>
 and the amplitude of oscillation A<sup>*</sup>
 is governed by two primary factors: the first is a reduction of f<sub>s </sub>
proportional to a series in A<sup>*2</sup>
 over a wide range of driving frequencies and Reynolds numbers; the second is nonlinear synchronization when this adjusted f<sub>s</sub>
 is in the vicinity of N = (1 -f<sub>s</sub>
/f<sub>d</sub>
)<sup>-1</sup>
, where N is an integer. Typically, the influence of higher-order terms is small, and truncation to the first term of the series (A<sup>*2</sup>
) well represents the overall trend of vortex shedding frequency as a function of amplitude. However, discontinuous steps are overlaid on this trend due to the nonlinear synchronization. When f<sub>s</sub>
 is normalized by the Strouhal frequency f<sub>St</sub>
 (the frequency of vortex shedding from an unperturbed cylinder), the rate at which f<sub>s</sub>
/f<sub>St</sub>
 decreases with amplitude, at least for f<sub>d</sub>
/f<sub>St</sub>
 = 1, shows a linear dependence on the Reynolds number. For a fixed Re = 175, the truncated series shows that the rate of decrease of f<sub>s</sub>
/f<sub>St</sub>
 with amplitude varies as (2 -f<sub>d</sub>
/f<sub>St</sub>
)<sup>-1/2</sup>
 for 1 ≤f<sub>d</sub>
/f<sub>St</sub>
 ≤ 2, but is essentially independent of f<sub>d</sub>
/f<sub>St</sub>
 for f<sub>d</sub>
/f<sub>St</sub>
 < 1. These trends of the rate of decrease of f<sub>s</sub>
 with respect to amplitude are also used to predict the amplitudes of oscillation around which synchronization occurs. These predicted amplitudes are shown to fall in regions of the parameter space where synchronized modes occur. Further, for the case of varying f<sub>d</sub>
/f<sub>St</sub>
, a very reasonable prediction of the amplitude of oscillation required for the onset of synchronization to the mode where f<sub>s</sub>
 = 0.5f<sub>d</sub>
 is given. In a similar manner, amplitudes at which f<sub>s</sub>
 = 0 are calculated, predicting where the natural vortex shedding is completely supplanted by the forcing. These amplitudes are found to coincide approximately with those at which the onset of a symmetric vortex shedding mode is observed. This result is interpreted as meaning that the symmetric shedding mode occurs when the dynamics crosses over from being dominated by the vortex shedding to being dominated by the forcing.</EA>
<CC>001B40F30M; 001B40G32F</CC>
<FD>Ecoulement tourbillonnaire; Détachement tourbillonnaire; Interaction fluide structure; Sillage; Cylindre oscillant; Modélisation; Simulation numérique; Oscillation périodique; 4640; 4732F</FD>
<ED>Swirling flow; Vortex shedding; Fluid structure interaction; Wake; Oscillating cylinder; Modeling; Numerical simulation; Periodic oscillation</ED>
<SD>Flujo torbellinal; Desprendimiento vorticial; Interacción fluido estructura; Estela (marina); Cilindro oscilante; Modelización; Simulación numérica; Oscilación periódica</SD>
<LO>INIST-5180.354000501989290080</LO>
<ID>13-0322476</ID>
</server>
</inist>
</record>

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Wake states and frequency selection of a streamwise oscillating cylinder

Wake states and frequency selection of a streamwise oscillating cylinder

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