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ホーム > Séminaires > Archives séminaires > Séminaires 2013 > Séminaire MSC Lundi 22 Avril 2013 à 11h30. Robert Style (Yale) : "Droplets on squishy substrates".

Séminaire MSC Lundi 22 Avril 2013 à 11h30. Robert Style (Yale) : "Droplets on squishy substrates"

Sauf mention contraire, les séminaires et les soutenances se déroulent à 11h30 en salle 454A du bâtiment Condorcet.

Droplets on squishy substrates

Robert Style Department of Mechanical Engineering and Department of Geology & Geophysics Yale University, New Haven USA

Simple experiments show that droplets on squishy surfaces demonstrate some surprising behaviour. For example, Young’s law for contact angles breaks down quite significantly. We study this using confocal microscopy. We find that the reason for the surprising behaviour is the deformation of the substrate by surface tension. Our experiments also shed light on the problem of how out-of-plane force balance exists at the contact line. Finally, we exploit the failure of Young’s law to drive spontaneous droplet motion across a flat surface. This has close analogies with durotaxis - the process whereby cells move along stiffness gradients in a substrate.

Contact : Équipe séminaires / Seminar team - Published on / Publié le 23 mars 2013

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