Numerical study of shear-dependent non-Newtonian fluids in compliant vessels

Publikationstyp
Journal Article
Publikationsdatum
2010-06-10
Sprache
English
Author
Hundertmark, Anna 
Medviďová-Lukáčová, Mária 
Institut
Mathematik E-10 
TORE-URI
http://hdl.handle.net/11420/3626
Enthalten in
Computers and mathematics with applications 
Volume
60
Issue
3
Start Page
572
End Page
590
Citation
Computers and Mathematics with Applications 3 (60): 572-590 (2010)
Publisher DOI
10.1016/j.camwa.2010.05.004
Scopus ID
2-s2.0-77955397949
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. © 2010 Elsevier Ltd. All rights reserved.
Schlagworte
Fluidstructure interaction
Hemodynamic wall parameters
Non-Newtonian fluids
Shear-thinning flow
Stenosis
DDC Class
510: Mathematik