The modeling technique, representing stents by a porous jump boundary condition, is novel and its results agree well with the cited literature on experimental and numerical stent research. Low permeability stents magnified the flow abnormalities seen in the stent presence simulations. spanwise locations on the wing and also at near-surface velocity profiles at. When reconstruction featured two mis-aligned stents, wall shear stress decreased and streamwise vorticity increased, proportional to the degree of mis-alignment. Stent presence lowered wall shear stress along stented artery walls and elevated streamwise vorticity near the stent inlets and outlets. The effects of stent presence, alignment, and permeability were investigated.

In the second investigation, stent reconstruction of an aorta-iliac bifurcation was simulated using CFD.

A region of high wall shear stress oscillation and large pressure gradients were found near the distal aneurysm neck. Detailed velocity profile 15 mm aft of the inlet lip with the inlet present.

Successful reproduction of the experimental velocity field allowed the simulations to be used to quantify other important variables, such as wall shear and pressure, within the aneurysm. Side view of the wind tunnel showing the Mach number in Tecplot 360. However, there was evidence to suggest that the elastic walls in the microPIV experiments (which were not modeled in the numerical simulations) played a role in sustaining primary vortex development within the aneurysm, particularly during pulse phases of high velocity. The resulting velocity vectors and vorticity contours compared very favorably with data from microPIV experiments on an equivalently-sized aneurysm geometry. Our work attempts to answer these questions by investigating the fluctuations in molecular velocity and energy distribution functions obtained from the. In the first investigation, numerical simulations of flow in an intracranial side-wall aneurysm were performed. The present research consisted of two investigations using computational fluid dynamics (CFD) to simulate the hemodynamics of arterial systems.

Tecplot 360 velocity profile tutorial