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arXiv · 1804.08092

Many-particle mobility and diffusion tensors for objects in viscous sheets

Yulia Sokolov·Haim Diamant
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Abstract

We derive a mobility tensor for many cylindrical objects embedded in a viscous sheet. This tensor guarantees a positive dissipation rate for any configuration of particles and forces, analogously to the Rotne-Prager-Yamakawa tensor for spherical particles in a three-dimensional viscous fluid. We test our result for a ring of radially driven particles, demonstrating the positive-definite property at all particle densities. The derived tensor can be utilized in Brownian Dynamics simulations with hydrodynamic interactions for such systems as proteins in biomembranes and inclusions in free-standing liquid films.

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Yulia Sokolov, Haim Diamant. 2018-07-03. Many-particle mobility and diffusion tensors for objects in viscous sheets. https://doi.org/10.1063/1.5037061

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