Proposition of an outflow boundary approach for carotid artery stenosis CFD simulation

Yu Zhang, Toyoki Furusawa, Sheau Fung Sia, Mitsuo Umezu, Yi Qian

研究成果: Article査読

15 被引用数 (Scopus)

抄録

The purpose of this study was to propose an innovative approach of setting outlet boundary conditions for the computational fluid dynamics (CFD) simulation of human common carotid arteries (CCAs) bifurcation based on the concept of energy loss minimisation at flow bifurcation. Comparisons between this new approach and previously reported boundary conditions were also made. The results showed that CFD simulation based on the proposed boundary conditions gave an accurate prediction of the critical stenosis ratio of carotid arteries (at around 65%). Other boundary conditions, such as the constant external pressure (P = 0) and constant outflow ratio, either overestimated or underestimated the critical stenosis ratio of carotid arteries. The patient-specific simulation results furthermore indicated that the calculated internal carotid artery flow ratio at CCA bifurcation (61%) coincided with the result obtained by clinical measurements through the use of Colour Doppler ultrasound.

本文言語English
ページ(範囲)488-494
ページ数7
ジャーナルComputer Methods in Biomechanics and Biomedical Engineering
16
5
DOI
出版ステータスPublished - 2013 5

ASJC Scopus subject areas

  • Bioengineering
  • Biomedical Engineering
  • Human-Computer Interaction
  • Computer Science Applications

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