Show simple item record

dc.contributor.authorMura, Federica
dc.contributor.authorZaccone, Alessio
dc.date.accessioned2016-03-24T10:43:04Z
dc.date.available2016-03-24T10:43:04Z
dc.date.issued2016-04-11
dc.identifier.citationMura & Zaccone. Physical Review E (2016) Vol. 93, Article 042803. doi: 10.1103/PhysRevE.93.042803
dc.identifier.issn1539-3755
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/254656
dc.description.abstractClassical nucleation theory offers a good framework for understanding the common features of new phase formation processes in metastable homogeneous media at rest. However, nucleation processes in liquids are ubiquitously affected by hydrodynamic flow, and there is no satisfactory understanding of whether shear promotes or slows down the nucleation process. We developed a classical nucleation theory for sheared systems starting from the molecular level of the Becker-Doering master kinetic equation and we analytically derived a closed-form expression for the nucleation rate. The theory accounts for the effect of flow-mediated transport of molecules to the nucleus of the new phase, as well as for the mechanical deformation imparted to the nucleus by the flow field. The competition between flow-induced molecular transport, which accelerates nucleation, and flow-induced nucleus straining, which lowers the nucleation rate by increasing the nucleation energy barrier, gives rise to a marked nonmonotonic dependence of the nucleation rate on the shear rate. The theory predicts an optimal shear rate at which the nucleation rate is one order of magnitude larger than in the absence of flow.
dc.description.sponsorshipF. M. is supported by a DFG Fellowship through the Graduate School of Quantitative Biosciences Munich (QBM). Discussions with Professor Daan Frenkel are gratefully acknowledged.
dc.languageeng
dc.language.isoen
dc.publisherAmerican Physical Society
dc.rightsAttribution-NonCommercial 2.0 UK: England & Wales
dc.rights.urihttp://creativecommons.org/licenses/by-nc/2.0/uk/
dc.titleEffects of shear flow on phase nucleation and crystallization.
dc.typeArticle
prism.endingPage042803
prism.publicationDate2016
prism.publicationNamePhysical Review E: Statistical, Nonlinear, and Soft Matter Physics
prism.startingPage042803
prism.volume93
dcterms.dateAccepted2016-03-18
rioxxterms.versionofrecord10.1103/PhysRevE.93.042803
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2016-04-11
dc.identifier.eissn2470-0053
rioxxterms.typeJournal Article/Review
cam.issuedOnline2016-04-11


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial 2.0 UK: England & Wales
Except where otherwise noted, this item's licence is described as Attribution-NonCommercial 2.0 UK: England & Wales