Calendering of pseudoplastic and viscoplastic fluids using the lubrication approximation

Sofou, S; Mitsoulis, E

dc.contributor.author	Sofou, S	en
dc.contributor.author	Mitsoulis, E	en
dc.date.accessioned	2014-03-01T01:19:59Z
dc.date.available	2014-03-01T01:19:59Z
dc.date.issued	2004	en
dc.identifier.issn	0334-6447	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15792
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-9744257813&partnerID=40&md5=f9374ed91aa25eea69d27cb19abe9b39	en
dc.subject	Calendering	en
dc.subject	Herschel-Bulkley model	en
dc.subject	Pseudoplasticity	en
dc.subject	Viscoplasticity	en
dc.subject	Yield stress	en
dc.subject.classification	Polymer Science	en
dc.subject.other	Approximation theory	en
dc.subject.other	Calendering	en
dc.subject.other	Mathematical models	en
dc.subject.other	Newtonian flow	en
dc.subject.other	Parameter estimation	en
dc.subject.other	Viscoplasticity	en
dc.subject.other	Yield stress	en
dc.subject.other	Herschel-Bulkley model	en
dc.subject.other	Lubrication approximation theory (LAT)	en
dc.subject.other	Newtonian model	en
dc.subject.other	Rolled sheets	en
dc.subject.other	Fluids	en
dc.subject.other	Calendering	en
dc.subject.other	Fluid	en
dc.subject.other	Mathematical Models	en
dc.subject.other	Newtonian Fluids	en
dc.subject.other	Parameters	en
dc.subject.other	Pseudoplasticity	en
dc.subject.other	Yield	en
dc.title	Calendering of pseudoplastic and viscoplastic fluids using the lubrication approximation	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The Lubrication Approximation Theory (LAT) is used to provide numerical results for calendering a sheet from an infinite reservoir. The Herschel-Bulkley model of viscoplasticity is used, which reduces with appropriate modifications to the Bingham, power-law and Newtonian models. The results give the final sheet thickness as a function of the dimensionless power-law index (in the case of pseudoplasticity) and the dimensionless yield stress (in the case of viscoplasticity). Integrated quantities of engineering interest are also calculated. These include the maximum pressure, the roll-separating force, and the power input to the rolls. Decreasing the power-law index n or increasing the Bingham number Bn lead to excess sheet thickness over the thickness at the nip. All engineering quantities calculated in dimensionless form increase substantially with the departure from the Newtonian values.	en
heal.publisher	FREUND PUBLISHING HOUSE LTD	en
heal.journalName	Journal of Polymer Engineering	en
dc.identifier.isi	ISI:000225242700003	en
dc.identifier.volume	24	en
dc.identifier.issue	5	en
dc.identifier.spage	505	en
dc.identifier.epage	522	en