Response and Recovery Times of Elastic and Viscoelastic Capsules in Shear Flow

Response and Recovery Times of Elastic and Viscoelastic Capsules in Shear Flow

Year:    2015

Communications in Computational Physics, Vol. 17 (2015), Iss. 5 : pp. 1151–1168

Abstract

Amid the recent interest in the role of membrane viscosity in the deformation of a fluid-filled capsule, we consider the role of various capsule properties (shear elasticity, membrane bending stiffness and viscosity) in determining the response and recovery times of a spherical capsule in shear flow. These times are determined by fitting exponential functions to results for the Taylor deformation parameter $D_{xy}$. We focus on the relationship between the membrane and fluid viscosity ratios, as suggested by Diaz et al [8], and whether adjustments to the fluid viscosity ratio may be used to approximate the effects of membrane viscosity. Based on its ability to reproduce response and recovery times, our results suggest that such an approach holds promise.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/10.4208/cicp.2014.m356

Communications in Computational Physics, Vol. 17 (2015), Iss. 5 : pp. 1151–1168

Published online:    2015-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    18

Keywords: