Numerical simulations of a second-order fluid with normal stress coefficients depending on the shear rate
| dc.contributor.author | Carapau, Fernando | |
| dc.date.accessioned | 2012-11-14T11:49:10Z | |
| dc.date.available | 2012-11-14T11:49:10Z | |
| dc.date.issued | 2008-01-01 | |
| dc.description.abstract | We analyze the unsteady flow of an incompressible generalized second-order fluid in a straight rigid tube, with circular cross-section of constant radius, where the normal stress coefficients depend on the shear rate by using a power law model. The full 3D unsteady model is simplified using a one-dimensional hierarchical approach based on the Cosserat theory related to fluid dynamics, which reduces the exact three-dimensional equations to a system depending only on time and on a single spatial variable. From this new 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 under constant mean pressure gradient and on the analysis of perturbed flows. | por |
| dc.identifier.authoremail | nd | |
| dc.identifier.citation | Proceedings of the American Conference on Applied Mathematics, University of Harvard, Cambridge, MA, USA, March 24-26, 2008, pp. 389-395. | por |
| dc.identifier.revista | Proceedings of the American Conference on Applied Mathematics, University of Harvard, Cambridge, MA, USA, March 24-26, 2008, pp. 389-395. | |
| dc.identifier.scientificarea | 721 | por |
| dc.identifier.uri | http://hdl.handle.net/10174/5562 | |
| dc.language.iso | por | por |
| dc.peerreviewed | yes | por |
| dc.rights | restrictedAccess | por |
| dc.subject | Cosserat Theory | por |
| dc.title | Numerical simulations of a second-order fluid with normal stress coefficients depending on the shear rate | por |
| dc.type | article | por |