[1]邓子辰,尤莹..三维锥形动脉中脉动流的数值模拟研究[J].郑州大学学报(工学版),2006,27(03):71-76.[doi:10.3969/j.issn.1671-6833.2006.03.017]
Deng Zichen,You Ying.Numerical simulation of pulsating flow in three-dimensional conical arteries[J].Journal of Zhengzhou University (Engineering Science),2006,27(03):71-76.[doi:10.3969/j.issn.1671-6833.2006.03.017]
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三维锥形动脉中脉动流的数值模拟研究(
)
《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]
- 卷:
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27
- 期数:
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2006年03期
- 页码:
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71-76
- 栏目:
-
- 出版日期:
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1900-01-01
文章信息/Info
- Title:
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Numerical simulation of pulsating flow in three-dimensional conical arteries
- 作者:
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邓子辰; 尤莹.
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西北工业大学工程力学系,西安,710072;大连理工大学工业装备结构分析国家重点实验室,大连116024, 西北工业大学工程力学系,西安,710072
- Author(s):
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Deng Zichen; You Ying
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-
- 关键词:
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弯曲动脉; 锥度角; 局部能量损失; 局部狭窄
- Keywords:
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- DOI:
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10.3969/j.issn.1671-6833.2006.03.017
- 文献标志码:
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A
- 摘要:
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在正常生理脉动流下,运用计算流体力学方法和血流动力学的基本原理,对三维渐缩锥形弯曲动脉内血液脉动流进行数值模拟和可视化分析.计算获得了具有锥度角的弯曲动脉内血液流动在心动周期内不同时刻的压力分布、速度分布.通过对弯曲动脉及其形成局部狭窄后,管腔内的血液流速和压力分布的研究,为动脉粥样硬化的成因及排除方法的研究提供更可靠的理论依据.结果表明,锥度角和动脉管壁的曲率变化对非定常状态下的脉动流的压力、速度分布、血流的局部能量损失的影响很大,这与实际情况相符.
- Abstract:
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Under normal physiological pulsation flow, the computational fluid dynamics method and the basic principles of hemodynamics were used to numerically simulate and visualize the blood pulsation flow in the three-dimensional tapering tapered curved artery. The pressure distribution and velocity distribution of blood flow in curved arteries with taper angle at different times in the cardiac cycle were calculated. By studying the blood flow rate and pressure distribution in the lumen of curved arteries and their formation of local stenosis, this paper provides a more reliable theoretical basis for the study of the causes and exclusion methods of atherosclerosis. The results show that the changes of taper angle and curvature of arterial wall have a great influence on the pressure, velocity distribution and local energy loss of blood flow in the pulsating flow under abnormal conditions, which is consistent with the actual situation.
更新日期/Last Update:
1900-01-01