Plane Periodic Flow Predictions for Fusiform Aneurysms

by Le-Chung Cheng, Asst. Prof.; Dept. of Mech. Engrg., Wichita State Univ., Wichita, Kan.,
James M. Robertson, Prof.; Dept. of Theoretical and Applied Mechanics, Univ. of Illinois at Urbana-Champaign, Urbana, Ill.,
Marlyn E. Clark, Prof.; Dept. of Theoretical and Applied Mechanics, Univ. of Illinois at Urbana-Champaign, Ill.,


Serial Information: Journal of the Engineering Mechanics Division, 1978, Vol. 104, Issue 1, Pg. 31-48


Document Type: Journal Paper

Abstract: Pathological bulges or dilatations of an artery are found in a variety of forms at diverse locations in the vasculature. In this paper, unsteady flow solutions in a two-dimensional wavy channel are obtained using the conservative form of the vorticity transport equation. A simple transformation is employed to shift the finite-difference calculations to a rectangular field where square meshes are used. The aneurysms geometrics selected for study showed that the main kinematic and kinetic activity was concentrated in the region near the cavity at all times except near flow reversal. At this time, the vortex that was created within the cavity and that had been trapped there were ejected.

Subject Headings: Two-dimensional flow | Cavitation | Channel flow | Unsteady flow | Finite difference method | Mesh generation | Geometrics | Kinematics

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