computer simulation of blood flow with compliant walls 2004-2010 itc software all rights reserved
TRANSCRIPT
COMPUTER SIMULATION OF BLOOD FLOW
WITH COMPLIANT WALLS
2004-2010 ITC Software All rights reserved.
THE FLUID-STRUCTURE INTERACTION ALGORITHM(LOOSE COUPLING)
CFD Solver
Geometry of interface surfaces
and velocity
Load transfer
INTERFACE
Surface tracking
Loads
CSD Solver
Information exchange for the coupled fluid-structure interaction problem
Finite element mesh for fluid domain of the carotid artery bifurcation
Blood density =1.05 g/cm3
Kinematic viscosity =0.035 cm2/sRe=300
Finite element mesh for solid domain (shells) of the carotid artery bifurcation Young’s modulus E=3.61 x106g/s2cm
Density of wall =1.1 g/cm3
Thickness:common carotid 0.031 cm distal segment internal carotid 0.022cm external carotid 0.020 cm Geometrical non-linearity (Updated Lagrangian)
Velocity distribution for t/tp=0.1
Effective stress distribution at the carotid bifurcation walls, t/tp=0.325
Wall shear stress field at t/tp=0.1 (deformable walls)
Blood velocity field in the carotid artery bifurcation for t/tp=0.1
ANIMATION
We hope you enjoyed our presentation !
ITC Software
Tel.: +1 978 287 4855
[email protected]://www.itcsoftware.com
We hope you enjoyed our presentation !
ITC Software
Tel.: +1 978 287 4855
[email protected]://www.itcsoftware.com