Détermination d'interfaces fluide-fluide à partir d'une conjecture sur la notion de mouillabilité avec hystérésis

Abstract : The purpose of this work is to check the mathematical adaquation of some intrinsic parameters able to characterize the notion of wettability, with or without hysteresis. In fact, we are interested in the possibility to determine any “fluid-fluid” interfaces from the knowledge of these intrinsic parameters. The classical approachs, local or energetical ones, are based under the “a priori”data of, either the contact angle, on the difference between the interfacial tensions “solid-fluids”, these last ones are supposed to characterize the mutual interactions of the solid with the two fluids. In this wordk, we consider the simple situation of a symmetric drop for which we look carefully the energetical approach ; we compare it to the local one, and point out their common limits. We show also, how to compute the “drop surroundings” interface, without knowing a priori the unrealist date mentioned above (contact angle or interfacial tension between solid and fluids) ; this computation leans on the “Benyettou-Lanchon” conjecture
Document type :
Theses
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http://docnum.univ-lorraine.fr/prive/INPL_T_1991_HERBI_B.pdf
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https://hal.univ-lorraine.fr/tel-01752129
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Submitted on : Thursday, March 29, 2018 - 1:32:57 PM
Last modification on : Monday, April 16, 2018 - 10:41:29 AM

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Boussad Herbi. Détermination d'interfaces fluide-fluide à partir d'une conjecture sur la notion de mouillabilité avec hystérésis. Autre. Institut National Polytechnique de Lorraine, 1991. Français. ⟨NNT : 1991INPL039N⟩. ⟨tel-01752129⟩

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