| Vesicle migration and spatial organization driven by flow line curvature. | |
| | |
MedLine Citation:
|
PMID: 21405252 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
|
Cross-streamline migration of deformable entities is essential in many problems such as industrial particulate flows, DNA sorting, and blood rheology. Using two-dimensional numerical experiments, we have discovered that vesicles suspended in a flow with curved flow lines migrate towards regions of high flowline curvature, which are regions of high shear rates. The migration velocity of a vesicle is found to be a universal function of the normal stress difference and the flow curvature. This finding quantitatively demonstrates a direct coupling between a microscopic quantity (migration) and a macroscopic one (normal stress difference). Furthermore, simulations with multiple vesicles revealed a self-organization, which corresponds to segregation, in a rim closer to the inner cylinder, resulting from a subtle interaction among vesicles. Such segregation effects could have a significant impact on the rheology of vesicle flows. |
| | |
Authors:
|
Giovanni Ghigliotti; Abtin Rahimian; George Biros; Chaouqi Misbah |
Publication Detail:
|
Type: Journal Article Date: 2011-01-10 |
Journal Detail:
|
Title: Physical review letters Volume: 106 ISSN: 1079-7114 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2011 Jan |
Date Detail:
|
Created Date: 2011-03-16 Completed Date: - Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
|
Languages: eng Pagination: 028101 Citation Subset: IM |
Affiliation:
|
Université Joseph Fourier and CNRS (UMR5588), Laboratoire de Spectrométrie Physique, 140 Avenue de la Physique, 38402 Saint Martin d'Hères, France. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
|
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Drag induced lift in granular media.
Next Document: Salt-Dependent DNA-DNA Spacings in Intact Bacteriophage ? Reflect Relative Importance of DNA Self-Re...