Effect of stenosis growth on blood flow at the bifurcation of the carotid artery.

Aikaterini Stamou, James Buick

    Research output: Contribution to conferencePaper


    The effects of stenosis growth on the flow properties of blood flow is considered. Details of the blood flow are simulated using the lattice Boltzmann
    method and the development of the stenosis is modelled using an approach
    which simulates its development in regions where there is a low velocity and
    low wall-shear-stress. The model is applied to investigate the near-wall velocity and wall shear stress over a period, and how this changes at key times
    in the development of the stenosis. Changes in the time-averaged values are
    also considered over a period of the motion. It is found that as the stenosis
    develops, a region of low near-wall velocity is formed around the down-stream
    limit of the stenosis, containing significant back-flow. This leads to the steno
    sis developing primarily in a down-stream direction. It is also observed that
    the changing wall geometry occurs in a region where vortex motion is generated in a healthy artery. The formation of the stenosis in the region has the
    effect of reducing this vortex motion.
    Original languageEnglish
    Number of pages11
    Publication statusSubmitted - 2019


    • Lattice Boltzmann Modelling
    • Stenosis development
    • Stenosis modelling
    • Carotid arteriosclerosis
    • extrapolation boundary scheme
    • Blood flow modelling
    • Blood flow simulation
    • Haemodynamic


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