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

作者：Zhang Yang; Wang Yuan^*; He Wenbo; Yang Bin

来源：Bio-medical Materials and Engineering, 2014, 24(6): 2585-2591.

DOI：10.3233/BME-141074

• Particle tracking velocimetry
• Voronoi diagram
• aortic blood flow
• abdominal aortic aneurysm
• pulsatile circulation system

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.

• 出版日期2014
• 单位西北大学; 西安交通大学