Post-Processing Dynamic Behavior of WSS in Aortic Blood Flow
2006 (English)Report (Other academic)
Pulsating flow simulations with CFD is performed on a stenosed human aorta with post-stenotic dilatation, for development of wall shear stress (WSS) dynamic parameters. WSS is of interest due to its correlation with atherosclerosis. The dynamic behavior and dynamic capturing parameters of WSS are usable in analyzing non-stationary results from blood flow simulations. The amount of wall back-flow is shown to be an very easy parameter to interpret and it showed an "washout" effect in the post-stenotic dilatation. A new dynamic capturing parameter describing the WSS angular amplitude (WSSAA) is presented. It has both differences and similarities with the widely used oscillating shear index (OSI) parameter. WSSA have a more direct physical interpretation then OSI.
Place, publisher, year, edition, pages
Linköping: Linköpings Universitetet , 2006.
LITH-IKP-R, ISSN 0281-5001 ; 6
WallShear Stress, Human Aorta, CFD, WSS angular amplitude, Wall back-flow
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-36744ISRN: LITH-IKP-R--06/1417--SELocal ID: 32311OAI: oai:DiVA.org:liu-36744DiVA: diva2:257593