Platelet transport in flowing blood is a critical issue in the prediction of thrombus formation. Since available data on platelet aggregation are essentially from experiments, the goal of this work is to investigate numerical solutions for platelet transport and predict the relative influence of convection and diffusion on platelet deposition at the arterial wall. The results obtained for laminar flow in an aneurysm show that both species transport and discrete phase models predict accurately the effects of convective and diffusive mechanisms and match experimental data closely. The species transport model also appears to estimate correctly platelet deposition in turbulent flow through a stenosis.

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