A Heterogeneous Approach For Modelling Blood Flow
In An Arterial Segment
Author(s)
A. DiCarlo, P. Nardinocchi, G. Pontrelli & L. Teresi
Abstract
A heterogeneous approach for modelling
blood flow in an arterial segment
A. Di Carlo', P. Nardinocchi2, G. Pontrelli3, L. Teresil
' ~ i ~ a r t i m e n t o di Ingegneria Civile
Universita di "Roma Tre", Roma, Italy
2~ipartimeizto di Ingegneria Strutturale e Geotecnica
Universita di Roma "La Sapienza", Roma, Italy
.'Istituto per le Applicazioni del Calcolo
CNR - Roma, Italy
Abstract
A differential model of blood flow through an arterial vessel is presented. The flow
equations averaged across the wall thickness are in conjunction with the equation
of the compliant wall modelled as an elastic axisymmetric membrane. Such onedimensional
model describing the nonlinear fluid-wall interaction is coupled with
a six compartment lumped parameter model which accounts for the global circulatory
features.
The full nonlinear equations are approximated by using a numerical finite difference
method on a staggered grid. Some numerical simulations show the characteristics
of the wave propagation and the depend
Keywords
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