A graphical user interface of blood flow through a multi irregular of stenosed artery

Abstract

A mathematical model of blood flow through a multi-irregular stenosed arlery is developed and visualized using the Graphical User Interface (GUI) in MATLAB. The flow of blood is assumed to be two-dimensional, unsteady, laminar, incompressible and axisymmetric. The streaming blood has been considered to be a Newtonian blood flow. The goveming equations of motion accompanjed by an appropriate boundary conditions are solved numerically using MAC (Marker and Cell) method in cylindrical coordinate system in staggered grids. The pressure-Poisson equation was then solved by using the successive-over-relaxation (SOR) method. The pressure drop gives higher values and the separation region is found to be larger in the case of blood flowing through a flexible artery having multiple irregular stenosis when compared to blood flowing through a single irregular stenosed artery. The numerical results of the blood flow characteristics such as axial and radial velocities. flow rate and wall shear stress under the influence of multiple stenosis is then visualized using GUI. The results show that, the flow rate and wall shear stress have lower values compared to the velocity profiles which has the higher values with iower Reynolds number and vice versa.