Large-Scale Lattice Boltzmann Method Simulations of Stenosed Carotid Bifurcation

Ge, Sen; Xie, Jiang; Hai-ya, Wang; Zhu, Changqi; Wu, Zhang

doi:10.1109/hpcc/smartcity/dss.2019.00153

Cited by 1 publication

(2 citation statements)

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“…The LBM model described by Equations (1)–(6) is referred to as the single‐relaxation‐time LBM, due to the single relaxation parameter,

τ

. This is the approach applied here, in common with other LBM studies relating to the carotid artery 29,31,32,36 due to its efficient computation; however, it is worth noting that it does have some disadvantages. In particular, it can experience stability issues at high Reynolds number flows, where a multi‐relaxation‐time (MRT) 40,41 model can be applied.…”

Section: Methodsmentioning

confidence: 99%

“…The simulations were focussed at micro‐channels, but could also be applied at the scale of the carotid artery, and would be particularly relevant when a high level of stensosis is present. Ge et al 32 considered details of velocity and WSS fields for a number of pre‐determined carotid artery geometries including an unstenosed artery. As well as focussing on the velocity and WSS from their patient specific arteries, they also considered aspects of parallel implementation required to provided a detailed 3D representation.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of hemodynamic markers for stenosis development

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Radulovic

Buick

2021

Engineering Reports

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Different hemodynamic markers for stenosis development are considered, assessed and compared. A recently proposed numerical approach is employed, where stenosis development is modeled based on the local hemodynamic conditions at the artery wall, determined using the lattice Boltzmann method. A range of hemodynamic markers, commonly associated in the literature with the progression of atherosclerosis, were considered. It was observed that using the oscillatory shear index, which is related to the wall shear stress oscillating from its mean direction, did not produce a realistic stenosis development. The other markers produced stenosis growth comparable with observations from the literature.

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“…The LBM model described by Equations (1)–(6) is referred to as the single‐relaxation‐time LBM, due to the single relaxation parameter,