On the Impact of Fluid Structure Interaction in Blood Flow Simulations

We study the impact of using fluid-structure interactions (FSI) to simulate blood flow in a large stenosed artery. compare typical configurations Navier-Stokes rigid geometry setting fully coupled FSI model. The relevance vascular elasticity is investigated with respect several questions clinical importance. Namely, we effect on wall shear stress distribution, Fractional Flow Reserve and damping stenosis pressure amplitude during pulsatory cycle. problem described monolithic variational formulation based Arbitrary Lagrangian Eulerian (ALE) coordinates. For comparison, perform pure simulations prestressed give good matching both configurations. A series numerical that cover important hemodynamical factors are presented discussed.