Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1995 Issue 05
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- Pages.113-116
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- 1995
A Study on the Shear Stress Distribution of the Steady and Physiological Blood Flows
정상 및 박동성 혈류의 전단응력분포에 관한 연구
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Suh, S.H.
(Dept. of Mech. Eng., Soongsil Univ.) ;
- Yoo, S.S. (Dept. of Mech. Eng. & Design, Hankuk Aviation Univ.) ;
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Roh, H.W.
(Dept. of Mech. Eng., Soongsil Univ.) ;
- Shim, J.W. (Dept. of Mech. Eng., Soongsil Univ.)
- Published : 1995.05.12
Abstract
Steady and physiological flows of a Newtonian fluid and blood in the bifurcated arterial vessel are numerically simulated. Distributions of velocity, pressure and wall shear stress in the bifurcated arterial vessel are calculated to investigate the differences between steady and physiological flows. For the given Reynolds number physiological flow characteristics of a Newtonian fluid and blood in the bifurcated arterial vessel are quite different from those of steady flows. No flow separation or flow reversal in the bifurcated region in the downstream after stenosis appears during the acceleration phase. Also, no recirculation region is seen for steady flows. However, during the deceleration phase the flow began to exhibit flow reversal, which is eventually extended to the entire wall region.
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