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Structure of a pure-vapor/liquid contact line on a heated substrate: truncated adsorbed microfilms and the spreading coefficient

par Rednikov, Alexei ;Colinet, Pierre
Référence XXII International Congress of Theoretical and Applied Mechanics(24-29 août 2008: Adélaïde (Australie)), CD-ROM Proceedings
Publication Publié, 2008

Publication dans des actes

• Accès en ligne
• Détails
• Contenu
• Statistiques

Résumé :

With the disjoining pressure in the form of an inverse cubic law, steady configurations of an evaporating liquid film are studied such that at one end it approaches a microfilm starting abruptly as a square root of the coordinate while getting to a constant slope at the other. The parameters are associated with the spreading coefficient in the manner of de Gennes. There exists a positive critical value of the spreading coefficient. For the values above the critical one, the microfilm turns into a semi-infinite one of constant thickness. For the values balow the critical one, a kink formed by such a microfilm recedes along the solid surface.