The Enskog kinetic theory for moderately dense gas-solid suspensions under simple shear flow is considered as a model to analyze the rheological properties of the system. The influence of the environmental fluid on solid particles is modeled via a viscous drag force plus a stochastic Langevin-like term. The Enskog equation is solved by means of two independent but complementary routes: (i) Grad...

Nitric oxide (NO) has potent relaxant and antiproliferative effects on vascular smooth muscle cells, which may represent an important antiatherosclerotic mechanism. Since one of the major stimuli for NO release is flow-related shear stress, we have investigated (1) the effect of increased shear stress on neointimal formation induced in the rabbit carotid artery by enclosing the vessel in a nonc...

Pattern of boundary stresses at the peak positive shear rate on three consecutive cycles beginning (A), middle (B), and end (C) a LAOS measurement strain = 9 frequency 10 rad s?1. There are approximately 50 between (A) (B) (C).

Vortex-induced vibrations (VIV) of a cylinder in Newtonian fluid is model problem fluid–structure interactions and has been studied extensively. In this work, we study the influence shear-thinning shear-thickening fluids on VIV response one-degree-of-freedom flexibly-mounted cylinder. We consider system with mass ratio $m^*=2$ zero structural damping power-law at $Re_0 = 15$ 200$ , respectively...

The distribution of nonstenosing, asymptomatic intimal plaques in 12 adult human carotid bifurcations obtained at autopsy was compared with the distribution of flow streamline patterns, flow velocity profiles, and shear stresses in corresponding scale models. The postmortem specimens were fixed while distended to restore normal in vivo length, diameter, and configuration. Angiograms were used t...