Comptes Rendus
Visualisation de l'écoulement de Taylor–Dean ouvert
[Flow visualisation in a Taylor–Dean open system]
Comptes Rendus. Mécanique, Volume 333 (2005) no. 2, pp. 197-203.

Results of flow visualisation in a Taylor–Dean open device are given. Observations made at the inlet, the core and the outlet of the flow show that different flow patterns can develop simultaneously. The formation and the growth of the structures observed versus control parameters are described.

L'écoulement dont nous présentons l'étude est produit dans un système de deux cylindres coaxiaux, ouvert transversalement. Il résulte de la combinaison de l'écoulement induit par la rotation du cylindre intérieur et de celui provenant de l'extérieur sous l'effet d'une pompe. Les instabilités qui s'y produisent lors de la transition laminaire-turbulent et les régimes d'écoulement auxquels elles donnent lieu sont relevés pour une large gamme de τ, le rapport des débits dus au gradient de pression azimutal et au gradient de vitesse radial.

Received:
Accepted:
Published online:
DOI: 10.1016/j.crme.2004.11.005
Mot clés : Mécanique des fluides, Écoulement ouvert, Structures, Visualisation, Instabilités, Taylor–Dean
Keywords: Fluid mechanics, Open flow, Flow patterns, Visualisation, Chaos, Taylor–Dean

Aomar Ait Aider 1; Salaheddine Skali-Lami 2; Jean Pierre Brancher 2

1 Département de mécanique, université de Tizi Ouzou, Algérie
2 LEMTA, INPL, 2, avenue de Forêt de Haye, 54504 Vandoeuvre cedex, France
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Aomar Ait Aider; Salaheddine Skali-Lami; Jean Pierre Brancher. Visualisation de l'écoulement de Taylor–Dean ouvert. Comptes Rendus. Mécanique, Volume 333 (2005) no. 2, pp. 197-203. doi : 10.1016/j.crme.2004.11.005. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2004.11.005/

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