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Numerical study of shear-dependent non-Newtonian fluids in compliant vessels
Publikationstyp
Journal Article
Publikationsdatum
2010-06-10
Sprache
English
Institut
TORE-URI
Enthalten in
Volume
60
Issue
3
Start Page
572
End Page
590
Citation
Computers and Mathematics with Applications 3 (60): 572-590 (2010)
Publisher DOI
Scopus ID
Publisher
Elsevier
The aim of this contribution is to present recent results on numerical modelling of non-Newtonian flow in compliant stenosed vessels with application in hemodynamics. We consider two models of shear-thinning non-Newtonian fluids and compare them with the Newtonian model. For the structure problem, the generalized string equation for radial symmetric tubes is used and extended to a stenosed vessel. The global iterative approach to approximate the fluidstructure interaction is used. Finally, we present numerical experiments for some non-Newtonian models, comparisons with the Newtonian model and the results for hemodynamic wall parameters such as the wall shear stress and the oscillatory shear index.
Schlagworte
Fluidstructure interaction
Hemodynamic wall parameters
Non-Newtonian fluids
Shear-thinning flow
Stenosis
DDC Class
510: Mathematik