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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

Abstract : 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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https://hal.archives-ouvertes.fr/hal-03140275
Contributor : Edith Peuvrel-Disdier <>
Submitted on : Friday, February 12, 2021 - 4:43:29 PM
Last modification on : Thursday, February 18, 2021 - 3:09:18 AM
Long-term archiving on: : Friday, May 14, 2021 - 9:34:00 AM

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2021-Thirunavukkarasu et al-De...
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  • HAL Id : hal-03140275, version 1

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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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