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Application of a novel particle tracking algorithm in the flow visualization of an artificial abdominal aortic aneurysm

Issue title: Frontiers in Biomedical Engineering and Biotechnology – Proceedings of the 3rd International Conference on Biomedical Engineering and Biotechnology, 25–28 September 2014, Beijing, China

Article type: Research Article

Authors: Zhang, Yang | Wang, Yuan; | He, Wenbo | Yang, Bin

Affiliations: Department of Fluid Machinery and Engineering, Xi'an Jiaotong University, Xianning Western Road 28, Xi'an 710049, China | School of Chemical Engineering, Northwest University, Taibai Northern Road 229, Xi'an 710049, China

Note: [] Corresponding author, Yuan Wang, Department of Fluid Machinery and Engineering, Xi'an Jiaotong University, Xianning Western Road 28, Xi'an 710049, China. Tel.: +86 2982663953; Fax: +86 2982668710; E-mail: [email protected].

Keywords: Particle tracking velocimetry, Voronoi diagram, aortic blood flow, abdominal aortic aneurysm, pulsatile circulation system

DOI: 10.3233/BME-141074

Journal: Bio-Medical Materials and Engineering, vol. 24, no. 6, pp. 2585-2591, 2014

Published: 2014
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Abstract

A novel Particle Tracking Velocimetry (PTV) algorithm based on Voronoi Diagram (VD) is proposed and briefed as VD–PTV. The robustness of VD–PTV for pulsatile flow is verified through a test that includes a widely used artificial flow and a classic reference algorithm. The proposed algorithm is then applied to visualize the flow in an artificial abdominal aortic aneurysm included in a pulsatile circulation system that simulates the aortic blood flow in human body. Results show that, large particles tend to gather at the upstream boundary because of the backflow eddies that follow the pulsation. This qualitative description, together with VD–PTV, has laid a foundation for future works that demand high-level quantification.

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