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arXiv · 1510.01646

Reply to the Comments on "Curvature capillary migration of microspheres" by P. Galatola and A. Wurger

Nima Sharifi-Mood·Iris B. Liu·Kathleen J. Stebe
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Abstract

We have studied microparticle migration on curved fluid interfaces in experiment and derived an expression for the associated capillary energy $E$ for two cases, i.e., pinned contact lines and equilibrium contact lines, which differ from expressions derived by others in the literature. In this problem, a particle of radius $a$ makes a disturbance in a large domain characterized by principal radii of curvature $R_1$ and $R_2$. Since $a$ is smaller than all associated geometric and physico-chemical length scales, analysis calls for a singular perturbation approach. We recapitulate these concepts, identify conceptual errors in the Comments about our work, and provide evidence from experiment and simulation that supports our view.

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Nima Sharifi-Mood, Iris B. Liu, Kathleen J. Stebe. 2015-10-06. Reply to the Comments on "Curvature capillary migration of microspheres" by P. Galatola and A. Wurger. https://arxiv.org/abs/1510.01646

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