FSI analysis of artificial heart valves using Newtonian and non- Newtonian models

Abstract eng:
Hemodynamics studies on artificial heart valve has been conducted since the first available valve on market. However, better and more accurate prediction in the hemodynamic performance that an artificial heart valve could offer is still needed. Current advance computational technique, such as FSI (fluid-structure interaction), integrated with proper rheological properties of human blood could provide further insight for optimal hemodynamics in an artificial heart valve implantation. The presented hemodynamics studies demonstrates an accurate numerical modelling with the Newtonian and non-Newtonian rheological implementation using FSI approach for analysis of the variance of different hemodynamic parameters between the two models. Minimum difference in leaflet motion was found with noticeable variations in wall shear stress distribution throughout different phases of one cardiac cycle.

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