Dynamics of a compound vesicle in shear flow

Shravan K. Veerapaneni, Y. N. Young, Petia M. Vlahovska, Jerzy Bławzdziewicz

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

The dynamics of a compound vesicle (a lipid bilayer membrane enclosing a fluid with a suspended particle) in shear flow is investigated by using both numerical simulations and theoretical analysis. We find that the nonlinear hydrodynamic interaction between the inclusion and the confining membrane gives rise to new features of the vesicle dynamics: The transition from tank treading to tumbling can occur in the absence of any viscosity mismatch, and a vesicle can swing if the enclosed particle is nonspherical. Our results highlight the complex effects of internal cellular structures have on cell dynamics in microcirculatory flows. For example, parasites in malaria-infected erythrocytes increase cytoplasmic viscosity, which leads to increase in blood viscosity.

Original languageEnglish (US)
Article number158103
JournalPhysical Review Letters
Volume106
Issue number15
DOIs
StatePublished - Apr 14 2011

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Dynamics of a compound vesicle in shear flow'. Together they form a unique fingerprint.

Cite this