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International Heat Transfer Conference 12

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

Chaotic advection and heat transfer enhancement in Stokes flows

A. Lefevre
CNRS GDR 681: Chaos Lagrangien 3-D, 2 ave. de la foret de Haye, BP 160, 54504 Vanduvre Cedex, France

Jose Paulo Barbosa Mota
Departamento de Quimica, Centro de Quimica Fina e Biotecnologia, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal

Antonio Jose Silveiro Rodrigo
Departamento de Quimica, Centro de Quimica Fina e Biotecnologia, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, 2829-516, Caparica, Portugal

Esteban Saatdjian
LEMTA GDR 681: Chaos Lagrangien 3-D, 2 ave. de la forêt de Haye, BP 160, 54504 Vandoeuvre Cédex, France

DOI: 10.1615/IHTC12.3220
14 pages

Abstract

The heat transfer rate from a solid boundary to a highly viscous fluid can be enhanced significantly by a phenomenon which is usually called chaotic advection. Although the flow is laminar and dominated by viscous forces, some fluid particle trajectories are chaotic (as in turbulent flow) due to a suitable boundary displacement protocol or to a change in geometry. As in turbulent flow, the enhancement of the heat transfer rate between the boundary and the fluid is intimately linked to the mixing of fluid in the system. Chaotic advection in real Stokes flows, i.e. flows governed by viscous forces and that can be constructed experimentally, is reviewed in this paper.

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