Mechanical properties of stenosed coronary arterial walls with slip velocity DOI
Shankar Narayan S, Richa Aishwarya,

Nidhi S. Vaishnaw

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

In the present manuscript, a detailed exploration of non-Newtonian blood flow along an elastic, stenosed branched coronary artery is undertaken. The study involves coupling laminar model with solid mechanics to achieve fluid–structure interaction through arbitrary Lagrangian–Eulerian approach. characteristics fluid flow, including velocity, pressure, and wall shear stress are examined in relation elastic properties arterial wall. changes several biomechanical parameters, such as principal strain, deformation gradient, Cauchy–Green tensor, Von Mises intima layer, highlight areas vulnerable endothelial dysfunction. upper branch bifurcation observed carry only around 10% total resulting formation recirculation zones at junction where oscillatory elevated. Flow separation noticed point on opposite stream experiencing increased pressure 1.79% that neighborhood. displacement profiles indicate 37.5% rise lower decrease throat stenosis decreasing profile downstream. peak reached inlet, outlet branches experiences relatively low values. results suggest pre-stenotic region upstream more susceptible undergoing dysfunction across walls confining higher probability.

Language: Английский

Mechanical properties of stenosed coronary arterial walls with slip velocity DOI
Shankar Narayan S, Richa Aishwarya,

Nidhi S. Vaishnaw

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(2)

Published: Feb. 1, 2025

In the present manuscript, a detailed exploration of non-Newtonian blood flow along an elastic, stenosed branched coronary artery is undertaken. The study involves coupling laminar model with solid mechanics to achieve fluid–structure interaction through arbitrary Lagrangian–Eulerian approach. characteristics fluid flow, including velocity, pressure, and wall shear stress are examined in relation elastic properties arterial wall. changes several biomechanical parameters, such as principal strain, deformation gradient, Cauchy–Green tensor, Von Mises intima layer, highlight areas vulnerable endothelial dysfunction. upper branch bifurcation observed carry only around 10% total resulting formation recirculation zones at junction where oscillatory elevated. Flow separation noticed point on opposite stream experiencing increased pressure 1.79% that neighborhood. displacement profiles indicate 37.5% rise lower decrease throat stenosis decreasing profile downstream. peak reached inlet, outlet branches experiences relatively low values. results suggest pre-stenotic region upstream more susceptible undergoing dysfunction across walls confining higher probability.

Language: Английский

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