Design of a transparent co-and counter-rotating eccentric Couette cell dedicated to study the interfacial flow behavior of viscous fluids under free surface shear - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Pré-Publication, Document De Travail Année : 2021

Design of a transparent co-and counter-rotating eccentric Couette cell dedicated to study the interfacial flow behavior of viscous fluids under free surface shear

Conception d'une cellule Couette excentrique transparente co- et contra-rotative pour étudier le comportement aux interfaces de fluides visqueux dans un cisaillement à surfaces libres

Résumé

In the present work, a prototype was developed to observe the flow behavior of viscous fluids (10^3 to 10^5 Pa.s) under free surface shear. The geometry of the prototype is an eccentric Couette cell where both cylinders can rotate in the same or opposite directions. Transparent windows permit in-situ observations during flow. The design, development and testing of the prototype with a viscous model fluid are reported in this paper. In order to obtain information on contact lines and free surfaces under shear, the flow behaviour of a small fluid volume was investigated in co-and counter-rotating conditions. The different flow conditions and information that can be obtained are described. A particular attention is paid to determine steady state flow conditions.
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Dates et versions

hal-03140275 , version 1 (12-02-2021)

Identifiants

  • HAL Id : hal-03140275 , version 1

Citer

Prashanth Thirunavukkarasu, Romain Castellani, Celine Cohen, Francis Fournier, Edith Peuvrel-Disdier, et al.. Design of a transparent co-and counter-rotating eccentric Couette cell dedicated to study the interfacial flow behavior of viscous fluids under free surface shear. 2021. ⟨hal-03140275⟩
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