Dynamic Hemodynamic Simulation on femoral artery

Guillaume Tran-Son-Tay1

Marc Garbey1

Mark G. Davies2

1 Modeling and Computational Science Lab, Department of Computer Science, University of Houston

2 Methodist DeBakey Heart & Vascular Center, The Methodist Hospital, Houston TX

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PlanAnatomy background/Goals

SFA & Fluid structure interaction – arterial pulse

Dynamic simulation - Motion of the knee

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SFA AnatomyVariety of

mechanical forces: compression, elongation and torsion.

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Fluid structure interaction

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Wall Motion

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Immersed boundary technique

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WSS Error Estimation (1)

Assuming that the wall has a uniform motion longitudinally, notice a 11% change on shear stress between external wall in black and internal wall in red

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WSS Error Estimation (2)

Assuming fix inlet/outlet size (section SFA 4cm), notice a 16% change on shear stress between external wall in black and internal wall in red

Dynamic SimulationUsing immersed boundary technique &

incompressible Navier-Stokes to compute velocity field or shear stress

Dynamic Fluid solver simulationUsing Fluent, developed by ANSYS

Create the bending motion (UDF)

Set up the boundary conditionsInletWallFluid

Simulation using dynamic meshes