Using CFD Simulation and Porous Medium Analogy to Assess Cerebral Aneurysm Hemodynamics after Endovascular Embolization

Hamdan, Mohammad O.; Alargha, Hashem M.; Elnajjar, Emad; Hilal‐Alnaqbi, Ali; Aziz, Waseem H.

doi:10.11159/enfht19.122

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…In addition, a model is showed by [16][17][18] to implement porous medium representation on aneurysm diverting stent. A numerical analysis is presented by [19] to assess blood hemodynamic inside the unruptured aneurysm. They presented a model (coiled aneurysm) as a porous volume with porosity and permeability related to the coil size and compactness value to study the effect of endovascular embolization.…”

Section: Introductionmentioning

confidence: 99%

Simulation of blood flow in human arteries as porous media

Al-Saad

Yassen

Suarez-Afanador

et al. 2022

Waves in Random and Complex Media

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Simulations of blood flow as a porous medium through an elbow artery have been investigated. The arteries have treated as a porous medium. The blood is represented as a Newtonian fluid. The blood is supplied with various geometries of arteries, which have different diameters. The no-slip boundary condition is applied for velocity components along the rigid arterial walls. Numerical simulations have presented the details of blood flow patterns and the local distribution of blood flow along the artery. The effects of permeability, with respect to the changes in the Reynolds number (Re = 0.1,1 and 5) as well for varying porosity levels has been discussed. The effect of blood vessel diameter on the resultant of distribution of velocity inside the vessel has been studied. Results are presented in the form of variations of velocity distributions and local variations of flow rates through the vessel dimensions. The numerical results of simulation are compared with the available data and a good agreement is found. The study shows to be potentially useful to evaluate the role of porosity and flow conditions when the body is subjected to diseases.

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Section: Introductionmentioning

confidence: 99%

Simulation of blood flow in human arteries as porous media

Al-Saad

Yassen

Suarez-Afanador

et al. 2022

Waves in Random and Complex Media

View full text Add to dashboard Cite

show abstract

Symmetries in porous flows: recursive solutions of the Brinkman equation in polygonal ducts

2021

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In this paper, we solve the Brinkman equation for unidirectional, steady, incompressible and Newtonian flow through a duct of uniform cross-section in the shape of a regular N-gon under no-slip boundary condition on the surface of the duct in the absence of applied forces. We calculate solutions for small values of N and by analysing them we devise a recursive scheme of generating solutions for all N ≥ 3 . We obtain approximate expressions for the vortex lines for all values of N by applying a trigonometric perturbation on circular vortex lines and graphically compare them with exact vortex lines. We also graphically compare both exact and approximate vortex lines with Schwarz-Christoffel transformation.

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Using CFD Simulation and Porous Medium Analogy to Assess Cerebral Aneurysm Hemodynamics after Endovascular Embolization

Cited by 2 publications

References 18 publications

Simulation of blood flow in human arteries as porous media

Simulation of blood flow in human arteries as porous media

Symmetries in porous flows: recursive solutions of the Brinkman equation in polygonal ducts

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