Numerical method
The numerical modelling for the determination of distributions of
hydrodynamics of blood flow inside vessel as a porous model has been
described. This section discusses the numerical modelling aspect
resulting according to the geometry.
Simulations have been performed using the Finite Volume Method (FVM).
Time step and grid size have been used until convergence is reached. The
numerical simulations estimate the impact of the leading parameters such
as geometry, permeability, and porosity.
To investigate the effect of vessel geometry on the blood flow, the
vessel with \(90^{o}\) bend was chosen. Figure (1) shows the
two-dimensional representation of the blood vessel and geometric
parameters for the simulations. The boundary conditions and flow
parameters were the same as described previously. A fine mesh setting is
used for the domains. Aiming to a mesh independent study, a mesh with
2.1 million nodes with the maximum element size of
5x10-4 µm has been used (Figure (1)). The Convergence
residuals criteria have set to 1 × 10-7 for all flow
variables.