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Wave interfacial instabilities at coextrusion in flat dies: Simulation and experimental results

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dc.title Wave interfacial instabilities at coextrusion in flat dies: Simulation and experimental results en
dc.contributor.author Zatloukal, Martin
dc.contributor.author Martyn, Mike T.
dc.contributor.author Coates, Phil D.
dc.contributor.author Sáha, Petr
dc.relation.ispartof Annual Technical Conference - ANTEC, Conference Proceedings
dc.date.issued 2003
utb.relation.volume 1
dc.citation.spage 295
dc.citation.epage 299
dc.event.title 61st Annual Technical Conference ANTEC 2003
dc.event.location Nashville, TN
utb.event.state-en United States
utb.event.state-cs Spojené státy americké
dc.event.sdate 2003-05-04
dc.event.edate 2003-05-08
dc.type conferenceObject
dc.language.iso en
dc.relation.uri http://www.4spe.org/Resources/resource.aspx?ItemNumber=6575
dc.description.abstract The work presents both, simulation and experimental findings of the research of two LDPE melts using a flat coextrusion flow visualization cell. The simulation is performed by FEM analysis with full u-v-p-τ numerical scheme employing viscoelastic constitutive equations. The predicted stresses, velocities and interface location have been found to be in a good agreement with the measurements. The experimental analysis shows that pronounced wave instabilities are caused by the minor layer break at the merge point of the layers, and extensional viscosity is a driving parameter here. Finally, recently proposed 'TNSD sign criterion' has been successfully tested for the prediction of the onset of wave interfacial instabilities in this type of the die geometry. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1005092
utb.identifier.scopus 2-s2.0-0141730240
utb.identifier.coden ACPED
utb.source d-scopus
dc.date.accessioned 2015-06-04T12:56:58Z
dc.date.available 2015-06-04T12:56:58Z
utb.contributor.internalauthor Zatloukal, Martin
utb.contributor.internalauthor Sáha, Petr
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