On the flow of non-Newtonian polymer solutions

Savvas, TA; Markatos, NC; Papaspyrides, CD

dc.contributor.author	Savvas, TA	en
dc.contributor.author	Markatos, NC	en
dc.contributor.author	Papaspyrides, CD	en
dc.date.accessioned	2014-03-01T01:10:00Z
dc.date.available	2014-03-01T01:10:00Z
dc.date.issued	1994	en
dc.identifier.issn	0307-904X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11293
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0028174964&partnerID=40&md5=78ee6a0947ded558e07d48b7fc885e9b	en
dc.subject	carboxy-methyl cellulose	en
dc.subject	flow simulation	en
dc.subject	non-Newtonian polymer solutions	en
dc.subject	poly(vynil chloride)	en
dc.subject.classification	Engineering, Multidisciplinary	en
dc.subject.classification	Mathematics, Interdisciplinary Applications	en
dc.subject.classification	Mechanics	en
dc.subject.other	Anemometers	en
dc.subject.other	Computer simulation	en
dc.subject.other	Flow visualization	en
dc.subject.other	Laminar flow	en
dc.subject.other	Laser Doppler velocimeters	en
dc.subject.other	Mathematical models	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Pipe flow	en
dc.subject.other	Polyvinyl chlorides	en
dc.subject.other	Solutions	en
dc.subject.other	Viscosity of liquids	en
dc.subject.other	Carboxymethyl cellulose	en
dc.subject.other	Cyclohexanone	en
dc.subject.other	Non Newtonian polymer solutions	en
dc.subject.other	Shear viscosity	en
dc.subject.other	Non Newtonian flow	en
dc.subject.other	Cyclohexanone	en
dc.subject.other	Laminar Flow	en
dc.subject.other	Non-Newtonian Flow	en
dc.subject.other	Polyvinyl Chloride	en
dc.subject.other	Solvents	en
dc.title	On the flow of non-Newtonian polymer solutions	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1994	en
heal.abstract	This paper presents a study of the flow of non-Newtonian polymer solutions. The predictions obtained by a numerical technique are compared with a derived analytical solution and with experimental measurements. Poly(vinyl chloride) (PVC) solutions in cyclohexanone were prepared in the concentration range between 16.67 and 20.24% w/w to determine the shear viscosity functions by means of a Brookfield RVT viscometer. A computer code was employed to simulate the laminar flow of a 20% w/w solution in a pipe. Results for the fully developed flow are in excellent agreement with the derived analytical solution and are also verified experimentally by measuring fluid velocity in a real pipe, using a laser-Doppler anemometer. Furthermore, the laminar flow of a Newtonian and an Ellis fluid in a pipe as well as the flow of a power law fluid in a sudden enlargement are simulated with the same code, giving predictions consistent with theory. It is concluded that computer simulation is a powerful and accurate technique for predicting the flow behavior of non- Newtonian polymer solutions. © 1994.	en
heal.publisher	BUTTERWORTH-HEINEMANN	en
heal.journalName	Applied Mathematical Modelling	en
dc.identifier.isi	ISI:A1994MM12700002	en
dc.identifier.volume	18	en
dc.identifier.issue	1	en
dc.identifier.spage	14	en
dc.identifier.epage	22	en