Effect of Continuous Arterial Blood Flow of Intra-Aorta Pump on the Aorta - A Computational Study

Abstract:

In this study, a computational fluid dynamics (CFD) study based on a finite element method (FEM) was performed for the human aorta with four different flow time patterns (healthy to full intra-aorta pump support). Fully coupled fluid-solid interaction (FSI) simulation was used to investigate the flow profiles in the aortic arch and its branches where the maximum disturbed and non-uniform flow patterns, and the wall shear stress profiles on the same areas. The blood flow was assumed as a homogeneous, incompressible, and Newtonian fluid flow. Flow across four inlets of aortas was derived from a lumped parameter model (LPM). The inlet flow rate waveforms were divided by different blood assist index (BAI), and were calculated with the physiological information of a heart failure patient.

• Periodical: Applied Mechanics and Materials (Volumes 275-277)
• Pages: 672-676
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.275-277.672
• Online since: January 2013
• Authors: Yan Jiao Xuan, Yu Chang, Bin Gao, Kai Yun Gu
• Keywords: Arterial Remodeling, Finite Element Method (FEM), Intra-Aorta Pump, Pressure Gradient, Shear Stress

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