Geometry effects in squeeze flow of Bingham plastics

Matsoukas, A; Mitsoulis, E

dc.contributor.author	Matsoukas, A	en
dc.contributor.author	Mitsoulis, E	en
dc.date.accessioned	2014-03-01T01:19:01Z
dc.date.available	2014-03-01T01:19:01Z
dc.date.issued	2003	en
dc.identifier.issn	0377-0257	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15324
dc.subject	Bingham plastic	en
dc.subject	Geometry effects	en
dc.subject	Squeeze flow	en
dc.subject	Squeeze force	en
dc.subject	Viscoplasticity	en
dc.subject	Yield stress	en
dc.subject.classification	Mechanics	en
dc.subject.other	Computational geometry	en
dc.subject.other	Computer simulation	en
dc.subject.other	Disks (machine components)	en
dc.subject.other	Plastics	en
dc.subject.other	Plates (structural components)	en
dc.subject.other	Coaxial disks	en
dc.subject.other	Non Newtonian flow	en
dc.subject.other	geometrical effect	en
dc.subject.other	plastic	en
dc.subject.other	viscoplastic flow	en
dc.subject.other	yield stress	en
dc.title	Geometry effects in squeeze flow of Bingham plastics	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/S0377-0257(02)00170-2	en
heal.identifier.secondary	http://dx.doi.org/10.1016/S0377-0257(02)00170-2	en
heal.language	English	en
heal.publicationDate	2003	en
heal.abstract	Squeeze flow of Bingham plastics shows small unyielded regions confined only near the center of the disks. Previous simulation results on axisymmetric coaxial disks are extended to aspect ratios ranging from 0.01 to 1, and to planar parallel plates of infinite width. New results are given for a wide range of Bingham numbers using the continuous modification of Papanastasiou for the Bingham model. Axisymmetric geometries give smaller unyielded regions than planar ones, while big aspect ratios give larger unyielded regions than small ones for the same Bingham number. Calculations of the squeeze force along disks or plates for different aspect ratios are also given and fitted to easy-to-use equations. (C) 2002 Elsevier Science B.V. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Non-Newtonian Fluid Mechanics	en
dc.identifier.doi	10.1016/S0377-0257(02)00170-2	en
dc.identifier.isi	ISI:000180789200006	en
dc.identifier.volume	109	en
dc.identifier.issue	2-3	en
dc.identifier.spage	231	en
dc.identifier.epage	240	en