Blood flow in cerebral arteries – automated way from Computed Tomography to ANSYS Fluent

Jakub Bodys, Jakub Poraj, Maciej Kryś

Abstract


With the constant growth of computer simulation significance in science and engineering, many new fields are gaining access to these powerful tools. One of these new disciplines is medicine. Human body provides many fascinating areas that could be researched from completely different angle and could gain all the benefits that computer simulation offers. For example blood flow in human arteries can be studied using Computational Fluid Dynamics. Researchers of cerebrovascular disorders can get an insight view on physical phenomena of blood flow and study risk factors of embolism or cerebral aneurysm.

Main issue in using computer simulation in medical research is the complexity and uniqueness of geometry that needs to be handled. After all, human body is one of the most sophisticated engineering systems created by nature. In this paper, a workflow for creating a numerical mesh for CFD simulation purposes is shown. Application shown in the example focus on cerebral arteries blood flow simulation. Numerical mesh is generated based on CT scan of patient’s head, using freeware tools Slicer3D and AutoIt3 as well as commercial software ANSYS Fluent Meshing 15.0.


Keywords


Computational Fluid Dynamics (CFD), blood flow, meshing, Computed Tomography Scan (CT scan)

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References


Papaioannou, Stefandis: Vascular Wall Shear Stress: Basic Principles and Methods. Hjc Hellenic Journal of Cardiology 46: 9-15, 2005

Ajiboye, Chalouhi, Starke , Zanaty, Bell, “Unruptured Cerebral Aneurysms: Evaluation and Management,” The Scientific World Journal, vol. 2015

ANSYS® Fluent, Release 15.0, Help System, Fluent User’s Guide, ANSYS Inc.




DOI: https://doi.org/10.17814/atim.2015.1(2).13

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