WIT Press

A Problem Oriented Approach To The Numerical Modelling Of Haemodynamic Problems

Price

Free (open access)

Paper DOI

10.2495/BIO950211

Volume

2

Pages

10

Published

1995

Size

746 kb

Author(s)

X.Y. Xu & M.W. Collins

Abstract

A physiological problem-oriented approach to the numerical modelling of haemodynamic problems is presented. Numerical procedures based on two different approaches (1) the finite volume method (FVM), and (2) the fi- nite element method (FEM), are described. Both methods employ the full three-dimensional time-dependent Navier-Stokes and continuity equations. and can accommodate non-Newtonian fluid behaviour. In the FVM code. motion of the wall is allowed by using a transient grid ding technique, which requires either a prescribed wall movement or a given pressure-radius rela- tionship. While in the FEM code, the wall motion is predicted by solving the equations governing the motion of a linearly elastic, incompressible. isotropic solid undergoing small deformations. Pulsatile flow predictions using the FVM. for

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