Simulation de l'écoulement autour de deux cylindres en tandem

Eric Didier

doi:10.1016/j.crme.2007.10.002

Simulation de l'écoulement autour de deux cylindres en tandem

Présenté par : Patrick Huerre

Eric Didier ¹

¹ Departamento de Engenharia Mecânica e Industrial, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal

Comptes Rendus. Mécanique, Volume 335 (2007) no. 11, pp. 696-701.

Résumé
Abstract

L'écoulement autour de deux cylindres circulaires en tandem de diamètre D est simulé numériquement, pour un nombre de Reynolds de 100. L'écoulement est laminaire et bidimensionnel. Une méthode de résolution totalement couplée permet de résoudre les équations de Navier–Stokes. La distance critique entre les cylindres est précisément définie entre 3,95D et 4,0D. La moyenne et la fluctuation des efforts ainsi que la fréquence de lâcher des vortex changent brutalement pour cet écartement.

Flow simulations over two circular cylinders in tandem are carried out at a Reynolds number of 100, using a fully coupled resolution method for solving the two-dimensional Navier–Stokes equations. A critical cylinder spacing was found between 3.95 and 4.0 cylinder diameters. The fluctuating forces jumped appreciably at this critical gap, like the shedding frequency and the mean drag.

Reçu le : 2006-03-10
Accepté le : 2007-09-25
Publié le : 2007-11-01

DOI : 10.1016/j.crme.2007.10.002

Mot clés : Mécanique des fluides numérique, Méthode de résolution totalement couplée, Cylindres circulaires en tandem
Keywords: Computational fluid mechanics, Fully coupled resolution method, Circular cylinders in tandem

Affiliations des auteurs :

Eric Didier ¹

¹ Departamento de Engenharia Mecânica e Industrial, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte de Caparica, Portugal

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     title = {Simulation de l'\'ecoulement autour de deux cylindres en tandem},
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     pages = {696--701},
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Eric Didier. Simulation de l'écoulement autour de deux cylindres en tandem. Comptes Rendus. Mécanique, Volume 335 (2007) no. 11, pp. 696-701. doi : 10.1016/j.crme.2007.10.002. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2007.10.002/

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