Analysis of perturbed flows of a second-order fluid using a 1D hierarchical model
| dc.contributor.author | Carapau, Fernando | |
| dc.date.accessioned | 2012-11-14T11:48:03Z | |
| dc.date.available | 2012-11-14T11:48:03Z | |
| dc.date.issued | 2008-11-01 | |
| dc.description.abstract | The aim of this paper is to analyze the unsteady flow of a non-Newtonian incompressible second-order fluid in a straight rigid axisymmetric tube with circular crosssection of constant radius. To study this problem, we use the 1D nine-director Cosserat theory approach which reduces the exact three-dimensional equations to a system depending only on time and on a single spatial variable. From this onedimensional system we obtain the relationship between mean pressure gradient and volume flow rate over a finite section of the tube. Attention is focused on some numerical simulation of steady/unsteady flows for specific mean pressure gradient and on the analysis of perturbed flows. | por |
| dc.identifier.authoremail | flc@uevora.pt | |
| dc.identifier.citation | nter. Journal of Mathematics and Computers in Simulation, Issue 3, Volume 2, pp. 256-263, 2008. | por |
| dc.identifier.issn | 1998-0140 | |
| dc.identifier.scientificarea | 721 | por |
| dc.identifier.uri | http://hdl.handle.net/10174/5561 | |
| dc.language.iso | por | por |
| dc.peerreviewed | yes | por |
| dc.publisher | Inter. Journal of Mathematics and Computers in Simulation | por |
| dc.rights | restrictedAccess | por |
| dc.subject | Cosserat theory, | por |
| dc.subject | perturbed flow, | por |
| dc.subject | unsteady flow, | por |
| dc.subject | volume flow rate, | por |
| dc.subject | second-order fluid, | por |
| dc.subject | mean pressure gradient. | por |
| dc.title | Analysis of perturbed flows of a second-order fluid using a 1D hierarchical model | por |
| dc.type | article | por |