Computation of Blood Flow Dynamics in a Model Cerebral Aneurysm
摘要
An intracranial aneurysm, also known as a cerebral aneurysm, is an abnormality in a brain artery that leads to a loss of elasticity and can result in a potentially fatal rupture. The aneurysm exerts pressure on brain tissue, causing internal bleeding. The risk of rupture, including controllable and uncontrollable factors, is a significant concern. Besides advancements in surgical techniques, computational analysis is vital for understanding the condition under study. The present investigation examines two geometries: a simple curved pipe and a curved pipe with a saccular-shaped aneurysm. Computational fluid dynamics (CFD) simulations evaluate the flow patterns in these geometries. The primary and secondary velocity fields, wall shear stress, and pressure distributions are analyzed for both geometries. A distinct difference is observed in the primary and secondary velocity patterns of the aneurysm model compared to the curved pipe. Additionally, the aneurysm model exhibits higher wall shear stress and pressure values compared to the curved pipe.