Lattice Boltzmann simulation of transient blood flow in arterial geometries using a regularised, viscoplastic and shear‐thinning fluid

2021 ◽  
Author(s):  
Bryce M. Hill ◽  
Christopher R. Leonardi
Keyword(s):  
Blood Flow ◽  
Lattice Boltzmann ◽  
Shear Thinning ◽  
Lattice Boltzmann Simulation ◽  
Shear Thinning Fluid

scholarly journals Pulsatile flow of shear-dependent fluid in a stenosed artery

2012 ◽  
Vol 39 (3) ◽  
pp. 209-231 ◽  
Author(s):  
Shankar Mandal ◽  
Swati Mukhopadhyayy ◽  
G.C.Z. Layek
Keyword(s):  
Blood Flow ◽  
Shear Stress ◽  
Wall Shear Stress ◽  
Blood Viscosity ◽  
Shear Thinning ◽  
Fluid Viscosity ◽  
Stenosed Artery ◽  
Flowing Blood ◽  
Wall Shear ◽  
Shear Thinning Fluid

This paper aims to investigate the blood flow in a bell-shaped constricted rigid tube, modeled as stenosed artery. The flow is assumed to be axi-symmetric, laminar and of oscillatory type. A mathematical model of shear-thinning fluid corresponding to the shear-dependent blood viscosity (mainly due to the behavior of the red blood cells in suspension of the flowing blood) is considered. The governing equations of motion are presented with the help of stream function-vorticity and are solved numerically by finite-difference technique. The shear-thinning fluid model for the flowing blood has significant contribution in the dynamics of oscillatory blood flow. The results reveal that the arterial wall shear stress reduced significantly and the peak value of the wall shear stress at the maximum area reduction is comparatively low for Newtonian fluid viscosity. The lengths of recirculating regions formed after the constriction are reduced for the shear-thinning blood viscosity model and also for its different material parameters.

scholarly journals Pore-Scale Simulation of Shear Thinning Fluid Flow Using Lattice Boltzmann Method

2017 ◽  
Vol 121 (3) ◽  
pp. 753-782 ◽  
Author(s):  
M. Jithin ◽  
Nimish Kumar ◽  
Ashoke De ◽  
Malay K. Das
Keyword(s):  
Fluid Flow ◽  
Lattice Boltzmann Method ◽  
Lattice Boltzmann ◽  
Shear Thinning ◽  
Pore Scale ◽  
Boltzmann Method ◽  
Shear Thinning Fluid

Lattice Boltzmann Simulation of Blood Flow in Blood Vessels with the Rolling Massage

2005 ◽  
Vol 22 (12) ◽  
pp. 3210-3213 ◽  
Author(s):  
Yi Hou-Hui ◽  
Xu Shi-Xiong ◽  
Qian Yue-Hong ◽  
Fang Hai-Ping
Keyword(s):  
Blood Flow ◽  
Blood Vessels ◽  
Lattice Boltzmann ◽  
Lattice Boltzmann Simulation
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