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Dresden 2020 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 50: Poster Session III

CPP 50.50: Poster

Dienstag, 17. März 2020, 14:00–16:00, P1C

Simple model for drops on elastic substrates — •Christopher Henkel1, Johannes Kemper1, Jacco Snoeijer2, and Uwe Thiele11Institut für Theoretische Physik, Münster, Germany — 2Fac. of Science and Technology, Twente, Netherlands

The investigation of the wetting behaviour on viscoelastic or elastic substrates is of great interest. We present a simple model for steady liquid drops on fully compressible elastic substrates, and show that a double transition appears under variation of the substrate softness, similar to the one described in [1]. We further investigate how the transition depends on wettability and how it is amended by the Shuttleworth effect, i.e., the dependency of the interfacial tensions on local strain. Finally, we employ a gradient dynamics model in the long-wave limit and show first results of direct time simulations.

[1] Lubbers, L. A., Weijs, J. H., Botto, L., Das, S., Andreotti, B., and Snoeijer, J. H. (2014). Drops on soft solids: free energy and double transition of contact angles. Journal of fluid mechanics, 747.

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