NUMERICAL EVALUATION OF CURVATURE EFFECTS ON SHEAR STRESSES ACROSS ARTERIAL STENOSES | Zendy

YangYao Niu | Zendy; Wei-Kuang Chu | Zendy; Lung-Cheng Lee | Zendy; HsiYu Yu | Zendy

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NUMERICAL EVALUATION OF CURVATURE EFFECTS ON SHEAR STRESSES ACROSS ARTERIAL STENOSES

Author(s) -

YangYao Niu,

Wei-Kuang Chu,

Lung-Cheng Lee,

HsiYu Yu

Publication year - 2002

Publication title -

biomedical engineering applications basis and communications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.171

H-Index - 22

eISSN - 1793-7132

pISSN - 1016-2372

DOI - 10.4015/s1016237202000243

Subject(s) - shear stress , mechanics , reynolds number , curvature , shear rate , materials science , shear (geology) , newtonian fluid , geometry , mathematics , physics , turbulence , composite material , viscosity

In this study, Newtonian flows passing through three-dimensional curved and straight axissymmetrical stenotic tubes are investigated. The geometry effects and Reynolds numbers of 100, 200, 400, and 600 on the formation of the shear rate over arterial walls are studied. It is noted that geometric effects on flow features such as velocity profiles, pressure and wall shear stress distributions in the post-stenotic region are significant. The location of maximum wall shear stress is found to relate to the geometric effect much than the Reynolds number effect.

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