Numerical techniques based on pressure-velocity formulation have been adopted to solve approximately, the governing equations for viscous flows through a tube (simulating an artery) with a periodic constriction. The effect of the constriction as well as the rigid of the tube, on the flow characteristics, and its consequences for arterial disease is the focus of this investigation. The unsteady incompressible Navier-Stokes equations are solved by using the finite-difference technique in staggered grid distribution. The haemodynamic factors like wall shear stress, pressure and velocity are analyzed through their graphical representations. Maximum resistance is attained in case of rigid stenosed tube rather than the flexible one. The main result is to contribute that the recirculating region is larger in case of a rigid tube than that of flexible one.
Mukhopadhyay, Swati; De, Prativa R.; Mandal, Mani S.; and Layek, G. C.
Analysis of Flow Fields in a Flexible Tube with Periodic Constriction,
Applications and Applied Mathematics: An International Journal (AAM), Vol. 6,
1, Article 25.
Available at: https://digitalcommons.pvamu.edu/aam/vol6/iss1/25