AustralieFrV1, PascalFrancis, Corpus, bibRecord, 001268

Transition to chaos in the wake of a rolling sphere

Identifieur interne : 001268 ( PascalFrancis/Corpus ); précédent : 001267; suivant : 001269

Transition to chaos in the wake of a rolling sphere

Auteurs : A. Rao ; P.-Y. Passaggia ; H. Bolnot ; M. C. Thompson ; T. Leweke ; K. Hourigan

Source :

Journal of Fluid Mechanics [ 0022-1120 ] ; 2012.

RBID : Pascal:12-0264427

Descripteurs français

Pascal (Inist)
- Ecoulement tourbillonnaire, Détachement tourbillonnaire, Système chaotique, Sillage, Simulation numérique, Etude expérimentale, Roulement, Sphère, 4732F, 4752.

English descriptors

KwdEn :
- Chaotic systems, Digital simulation, Experimental study, Rolling (mechanics), Spheres, Vortex flow, Vortex shedding, Wakes.

Abstract

The wake of a sphere rolling along a wall at low Reynolds number is investigated numerically and experimentally. Two successive transitions are identified in this flow, as the Reynolds number is increased. The first leads to the periodic shedding of planar symmetric hairpin vortices. The second and previously unknown transition involves a loss of planar symmetry and a low-frequency lateral oscillation of the wake, exhibiting a surprising 7:3 resonance with the hairpin vortex shedding. The two transitions are characterized by dye visualizations and quantitative information obtained from numerical simulations, such as force coefficients and wake frequencies (Strouhal numbers). Both transitions are found to be supercritical. Further increasing the Reynolds number, the flow becomes progressively more disorganized and chaotic. Overall, the transition sequence for the rolling sphere is closer to the one for a non-rotating sphere in a free stream than to that of a non-rotating sphere close to a wall.

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				`@2 695`
A08	`01`	`1`	`ENG`	`@1 Transition to chaos in the wake of a rolling sphere`
A11	`01`	`1`		`@1 RAO (A.)`
A11	`02`	`1`		`@1 PASSAGGIA (P.-Y.)`
A11	`03`	`1`		`@1 BOLNOT (H.)`
A11	`04`	`1`		`@1 THOMPSON (M. C.)`
A11	`05`	`1`		`@1 LEWEKE (T.)`
A11	`06`	`1`		`@1 HOURIGAN (K.)`
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 4 aut. @Z 6 aut.`
A14	`02`			`@1 Institut de Recherche sur les Phenomenes Hors-Équilibre (IRPHE), CNRS/Aix-Marseille Universite @2 13384 Marseille @3 FRA @Z 2 aut. @Z 3 aut. @Z 5 aut.`
A14	`03`			`@1 Division of Biological Engineering, Monash University @2 Melbourne, VIC 3800 @3 AUS @Z 6 aut.`
A20				`@1 135-148`
A21				`@1 2012`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 5180 @5 354000509322280060`
A44				`@0 0000 @1 © 2012 INIST-CNRS. All rights reserved.`
A45				`@0 1 p.1/4`
A47	`01`	`1`		`@0 12-0264427`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Journal of Fluid Mechanics`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 The wake of a sphere rolling along a wall at low Reynolds number is investigated numerically and experimentally. Two successive transitions are identified in this flow, as the Reynolds number is increased. The first leads to the periodic shedding of planar symmetric hairpin vortices. The second and previously unknown transition involves a loss of planar symmetry and a low-frequency lateral oscillation of the wake, exhibiting a surprising 7:3 resonance with the hairpin vortex shedding. The two transitions are characterized by dye visualizations and quantitative information obtained from numerical simulations, such as force coefficients and wake frequencies (Strouhal numbers). Both transitions are found to be supercritical. Further increasing the Reynolds number, the flow becomes progressively more disorganized and chaotic. Overall, the transition sequence for the rolling sphere is closer to the one for a non-rotating sphere in a free stream than to that of a non-rotating sphere close to a wall.
C02	`01`	`3`		`@0 001B40G32F`
C02	`02`	`3`		`@0 001B40G52`
C03	`01`	`3`	`FRE`	`@0 Ecoulement tourbillonnaire @5 02`
C03	`01`	`3`	`ENG`	`@0 Vortex flow @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`	`3`	`FRE`	`@0 Système chaotique @5 08`
C03	`03`	`3`	`ENG`	`@0 Chaotic systems @5 08`
C03	`04`	`3`	`FRE`	`@0 Sillage @5 09`
C03	`04`	`3`	`ENG`	`@0 Wakes @5 09`
C03	`05`	`3`	`FRE`	`@0 Simulation numérique @5 15`
C03	`05`	`3`	`ENG`	`@0 Digital simulation @5 15`
C03	`06`	`3`	`FRE`	`@0 Etude expérimentale @5 16`
C03	`06`	`3`	`ENG`	`@0 Experimental study @5 16`
C03	`07`	`X`	`FRE`	`@0 Roulement @5 29`
C03	`07`	`X`	`ENG`	`@0 Rolling (mechanics) @5 29`
C03	`07`	`X`	`SPA`	`@0 Rodadura @5 29`
C03	`08`	`3`	`FRE`	`@0 Sphère @5 30`
C03	`08`	`3`	`ENG`	`@0 Spheres @5 30`
C03	`09`	`3`	`FRE`	`@0 4732F @4 INC @5 56`
C03	`10`	`3`	`FRE`	`@0 4752 @4 INC @5 57`
N21				`@1 198`

Format Inist (serveur)

NO :	PASCAL 12-0264427 INIST
ET :	Transition to chaos in the wake of a rolling sphere
AU :	RAO (A.); PASSAGGIA (P.-Y.); BOLNOT (H.); THOMPSON (M. C.); LEWEKE (T.); HOURIGAN (K.)
AF :	Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering, Monash University/Melbourne, VIC 3800/Australie (1 aut., 4 aut., 6 aut.); Institut de Recherche sur les Phenomenes Hors-Équilibre (IRPHE), CNRS/Aix-Marseille Universite/13384 Marseille/France (2 aut., 3 aut., 5 aut.); Division of Biological Engineering, Monash University/Melbourne, VIC 3800/Australie (6 aut.)
DT :	Publication en série; Niveau analytique
SO :	Journal of Fluid Mechanics; ISSN 0022-1120; Coden JFLSA7; Royaume-Uni; Da. 2012; Vol. 695; Pp. 135-148; Bibl. 1 p.1/4
LA :	Anglais
EA :	The wake of a sphere rolling along a wall at low Reynolds number is investigated numerically and experimentally. Two successive transitions are identified in this flow, as the Reynolds number is increased. The first leads to the periodic shedding of planar symmetric hairpin vortices. The second and previously unknown transition involves a loss of planar symmetry and a low-frequency lateral oscillation of the wake, exhibiting a surprising 7:3 resonance with the hairpin vortex shedding. The two transitions are characterized by dye visualizations and quantitative information obtained from numerical simulations, such as force coefficients and wake frequencies (Strouhal numbers). Both transitions are found to be supercritical. Further increasing the Reynolds number, the flow becomes progressively more disorganized and chaotic. Overall, the transition sequence for the rolling sphere is closer to the one for a non-rotating sphere in a free stream than to that of a non-rotating sphere close to a wall.
CC :	001B40G32F; 001B40G52
FD :	Ecoulement tourbillonnaire; Détachement tourbillonnaire; Système chaotique; Sillage; Simulation numérique; Etude expérimentale; Roulement; Sphère; 4732F; 4752
ED :	Vortex flow; Vortex shedding; Chaotic systems; Wakes; Digital simulation; Experimental study; Rolling (mechanics); Spheres
SD :	Desprendimiento vorticial; Rodadura
LO :	INIST-5180.354000509322280060
ID :	12-0264427

Links to Exploration step

Pascal:12-0264427

Le document en format XML

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<front><div type="abstract" xml:lang="en">The wake of a sphere rolling along a wall at low Reynolds number is investigated numerically and experimentally. Two successive transitions are identified in this flow, as the Reynolds number is increased. The first leads to the periodic shedding of planar symmetric hairpin vortices. The second and previously unknown transition involves a loss of planar symmetry and a low-frequency lateral oscillation of the wake, exhibiting a surprising 7:3 resonance with the hairpin vortex shedding. The two transitions are characterized by dye visualizations and quantitative information obtained from numerical simulations, such as force coefficients and wake frequencies (Strouhal numbers). Both transitions are found to be supercritical. Further increasing the Reynolds number, the flow becomes progressively more disorganized and chaotic. Overall, the transition sequence for the rolling sphere is closer to the one for a non-rotating sphere in a free stream than to that of a non-rotating sphere close to a wall.</div>
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<fC01 i1="01" l="ENG"><s0>The wake of a sphere rolling along a wall at low Reynolds number is investigated numerically and experimentally. Two successive transitions are identified in this flow, as the Reynolds number is increased. The first leads to the periodic shedding of planar symmetric hairpin vortices. The second and previously unknown transition involves a loss of planar symmetry and a low-frequency lateral oscillation of the wake, exhibiting a surprising 7:3 resonance with the hairpin vortex shedding. The two transitions are characterized by dye visualizations and quantitative information obtained from numerical simulations, such as force coefficients and wake frequencies (Strouhal numbers). Both transitions are found to be supercritical. Further increasing the Reynolds number, the flow becomes progressively more disorganized and chaotic. Overall, the transition sequence for the rolling sphere is closer to the one for a non-rotating sphere in a free stream than to that of a non-rotating sphere close to a wall.</s0>
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<server><NO>PASCAL 12-0264427 INIST</NO>
<ET>Transition to chaos in the wake of a rolling sphere</ET>
<AU>RAO (A.); PASSAGGIA (P.-Y.); BOLNOT (H.); THOMPSON (M. C.); LEWEKE (T.); HOURIGAN (K.)</AU>
<AF>Fluids Laboratory for Aeronautical and Industrial Research (FLAIR), Department of Mechanical and Aerospace Engineering, Monash University/Melbourne, VIC 3800/Australie (1 aut., 4 aut., 6 aut.); Institut de Recherche sur les Phenomenes Hors-Équilibre (IRPHE), CNRS/Aix-Marseille Universite/13384 Marseille/France (2 aut., 3 aut., 5 aut.); Division of Biological Engineering, Monash University/Melbourne, VIC 3800/Australie (6 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of Fluid Mechanics; ISSN 0022-1120; Coden JFLSA7; Royaume-Uni; Da. 2012; Vol. 695; Pp. 135-148; Bibl. 1 p.1/4</SO>
<LA>Anglais</LA>
<EA>The wake of a sphere rolling along a wall at low Reynolds number is investigated numerically and experimentally. Two successive transitions are identified in this flow, as the Reynolds number is increased. The first leads to the periodic shedding of planar symmetric hairpin vortices. The second and previously unknown transition involves a loss of planar symmetry and a low-frequency lateral oscillation of the wake, exhibiting a surprising 7:3 resonance with the hairpin vortex shedding. The two transitions are characterized by dye visualizations and quantitative information obtained from numerical simulations, such as force coefficients and wake frequencies (Strouhal numbers). Both transitions are found to be supercritical. Further increasing the Reynolds number, the flow becomes progressively more disorganized and chaotic. Overall, the transition sequence for the rolling sphere is closer to the one for a non-rotating sphere in a free stream than to that of a non-rotating sphere close to a wall.</EA>
<CC>001B40G32F; 001B40G52</CC>
<FD>Ecoulement tourbillonnaire; Détachement tourbillonnaire; Système chaotique; Sillage; Simulation numérique; Etude expérimentale; Roulement; Sphère; 4732F; 4752</FD>
<ED>Vortex flow; Vortex shedding; Chaotic systems; Wakes; Digital simulation; Experimental study; Rolling (mechanics); Spheres</ED>
<SD>Desprendimiento vorticial; Rodadura</SD>
<LO>INIST-5180.354000509322280060</LO>
<ID>12-0264427</ID>
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Transition to chaos in the wake of a rolling sphere

Transition to chaos in the wake of a rolling sphere

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