In elastic arteries, intima-media thickening is more pronounced in areas with low than with high mean and peak wall shear stress. These findings in elastic arteries are not necessarily representative of the situation in muscular arteries. The former arteries have to store volume energy, whereas the latter are mainly conductive vessels. It was the aim of the present study to investigate noninvas...

PURPOSE Hemodynamic factors, such as Wall Shear Stress (WSS), play a substantial role in arterial diseases. In the larger arteries, such as the carotid artery, interaction between the vessel wall and blood flow affects the distribution of hemodynamic factors. The fluid is considered to be non-Newtonian, whose flow is governed by the equation of a second-grade viscoelastic fluid and the effects ...

Laminar Newtonian flow through a 2-dimensional channel with one sinusoidal wall is studied for wavelengths comparable to, or much larger than, the channel height. In the long wave limit which is solved analytically, the pressure is in phase with the wave slope and the shear stress is in phase with the wave height. As the wavelength is reduced, the shear stress maximum moves upstream of the peak...

This paper incorporates the homogenization theory into non-penalized Smooth-Edged Material Distribution for Optimizing Topology (SEMDOT) algorithm to conduct design of cellular structures with maximum shear modulus. The parametric study and comparison existing results obtained by BESO are carried out. numerical examples in 2D 3D demonstrate effectiveness SEMDOT generating smooth Compared BESO, ...

Fluid velocities were measured by laser Doppler velocimetry under conditions of pulsatile flow in a scale model of the human carotid bifurcation. Flow velocity and wall shear stress at five axial and four circumferential positions were compared with intimal plaque thickness at corresponding locations in carotid bifurcations obtained from cadavers. Velocities and wall shear stresses during diast...