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Dynamic Hemodynamic Simulation on femoral artery. Guillaume Tran-Son-Tay 1 Marc Garbey 1 Mark G. Davies 2 1 Modeling and Computational Science Lab, Department of Computer Science, University of Houston 2 Methodist DeBakey Heart & Vascular Center, The Methodist Hospital, Houston TX. Plan. - PowerPoint PPT Presentation
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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
2
PlanAnatomy background/Goals
SFA & Fluid structure interaction – arterial pulse
Dynamic simulation - Motion of the knee
3
SFA AnatomyVariety of
mechanical forces: compression, elongation and torsion.
4
Fluid structure interaction
5
Wall Motion
6
Immersed boundary technique
7
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
8
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