Comptes Rendus
Solutions multiples pour les écoulements tridimensionnels en rotation
Comptes Rendus. Mécanique, Volume 330 (2002) no. 11, pp. 791-796.

La rupture de l'axisymétrie des écoulements entraînés par la rotation d'un disque au fond d'une cuve cylindrique de rapport de forme h=1 est étudiée numériquement. Au delà d'un nombre de Reynolds critique, l'écoulement bifurque vers des solutions tridimensionnelles. Les caractéristiques spatiales et temporelles des branches atteintes sont analysées.

The symmetry-breaking in a swirling flow generated inside a cylindrical tank of aspect ratio h=1 by the rotation of one lid is studied numerically. Beyond a critical Reynolds number, the flow undergoes a bifurcation to three-dimensional solutions. The spatial and temporal behaviour on these branches are examined.

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Révisé le :
Publié le :
DOI : 10.1016/S1631-0721(02)01534-6
Mot clés : mécanique des fluides, écoulement en rotation, brisure de l'axisymétrie, transition, simulation numérique direct
Keywords: fluid mechanics, rotating flow, symmetry-breaking, transition, direct numerical simulation

Emerson Barbosa 1 ; Olivier Daube 1

1 CEMIF–LME, 40, rue du Pelvoux, CE 1455 Courcouronnes, 91020 Evry cedex, France
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Emerson Barbosa; Olivier Daube. Solutions multiples pour les écoulements tridimensionnels en rotation. Comptes Rendus. Mécanique, Volume 330 (2002) no. 11, pp. 791-796. doi : 10.1016/S1631-0721(02)01534-6. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/S1631-0721(02)01534-6/

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