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Title

Numerical study of hemodynamic parameters in pulsatile turbulent blood flow in flexible artery with stenosis

Numerical study of hemodynamic parameters in pulsatile turbulent blood flow in flexible artery with stenosis
Year: 1393
COI: ISME22_258
Language: EnglishView: 1,033
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Authors

Mehdi Jahangiri - Mechanic PHD Student, Isfahan University of Technology
Mohsen Saghafian - Assistant Professor, Isfahan University of Technology
Mahmoodreza Sadeghi - Assistant Professor, Isfahan University

Abstract:

In this paper a numerical study of hemodynamic parameters of pulsatile blood flow in flexible coronary artery with 80% stenosis by using of ADINA software has been done. Artery wall is considered rigid and elastic and blood flow is assumed Newtonian and turbulent. To solve the turbulente flow, K-ε Standard and K-ε RNG turbulent models have been used. In compared with other numerical studies, K-ε Standard model have a better agreement with experimental data. Result indicates that by changing from flexible wall to rigid wall and laminar flow to turbulent flow, the pressure is increased in the proximal of stenosis. Also the assumption of laminar flow in comparing with turbulent flow show less circumferential stress for artery wall. Another result this is that in both assumption of turbulence flow and laminar flow, flexibility of wall leads to the reduction of shear stress oscillation. Also difference between rigid and flexible wall shear stress in assumption of turbulent flow is higher than assumption of laminar flow.

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Paper COI Code

This Paper COI Code is ISME22_258. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/277461/

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Jahangiri, Mehdi and Saghafian, Mohsen and Sadeghi, Mahmoodreza,1393,Numerical study of hemodynamic parameters in pulsatile turbulent blood flow in flexible artery with stenosis,The 22nd Annual International Conference on Mechanical Engineering,Ahvaz,https://civilica.com/doc/277461

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Type of center: دانشگاه دولتی
Paper count: 14,848
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