Elastohydrodynamics induced by a rapidly moving microscopic body

Show simple item record

dc.contributor.author Clarke, Richard en
dc.contributor.author Potnis, S en
dc.date.accessioned 2012-03-09T01:09:59Z en
dc.date.issued 2011 en
dc.identifier.citation Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 467(2134):2852-2873 2011 en
dc.identifier.issn 1471-2946 en
dc.identifier.uri http://hdl.handle.net/2292/13589 en
dc.description.abstract The simple model involving a moving rigid particle, separated from a compliant wall by a thin film of viscous fluid, has previously been applied successfully to a number of important problems. For example, transport of blood cells, particle clearance in the lungs and the late stages of particle sedimentation. Considerable fluid forces are generated in the film, causing the compliant surface to deform. Hence, the usual goal is derivation and solution of an appropriate deformation evolution equation. In the applications considered to-date, however, flow inertia is neglected as flow speeds are not especially high. In this study, we are interested in regimes where unsteady flow inertia is significant, such as found in certain microdevices or thermal excitation of light particles. We present a novel model, which for the first time accounts for inertial effects in both the flow, and the deformable surface. The significant role that inertia plays is fully illustrated through surface deformation profiles, computed under a variety of parameter regimes, as well as calculations of associated hydrodynamic loading. Frequency response curves are seen to exhibit distinct shifts in resonant frequency and quality factor under different levels of inertia, a finding which we believe has important practical implications. en
dc.publisher The Royal Society en
dc.relation.ispartofseries Proceedings of the Royal Society of London Series A - Mathematical Physical and Engineering Sciences en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from http://www.sherpa.ac.uk/romeo/issn/1471-2946/ en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Elastohydrodynamics induced by a rapidly moving microscopic body en
dc.type Journal Article en
dc.identifier.doi 10.1098/rspa.2011.0028 en
pubs.begin-page 2852 en
pubs.volume 467 en
dc.rights.holder Copyright: The Royal Society en
pubs.end-page 2873 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 191278 en
pubs.org-id Engineering en
pubs.org-id Engineering Admin en
pubs.record-created-at-source-date 2010-12-05 en

Files in this item

There are no files associated with this item.

Find Full text

This item appears in the following Collection(s)

Show simple item record


Search ResearchSpace