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Dynamic Hemodynamic Simulation on femoral artery

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.

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Dynamic Hemodynamic Simulation on femoral artery

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  1. Dynamic Hemodynamic Simulation on femoral artery Guillaume Tran-Son-Tay1 Marc Garbey1 Mark G. Davies2 1Modeling and Computational Science Lab, Department of Computer Science, University of Houston 2Methodist DeBakey Heart & Vascular Center, The Methodist Hospital, Houston TX

  2. Plan • Anatomy background/Goals • SFA & Fluid structure interaction – arterial pulse • Dynamic simulation - Motion of the knee

  3. SFA Anatomy • Variety 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

  9. Dynamic Simulation • Using immersed boundary technique & incompressible Navier-Stokes to compute velocity field or shear stress

  10. Dynamic Fluid solver simulation • Using Fluent, developed by ANSYS • Create the bending motion (UDF) • Set up the boundary conditions • Inlet • Wall • Fluid

  11. Simulation using dynamic meshes

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