| 动脉中脉动流量的近似计算方法 |
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| 引用本文： | 严育兵 姚大康. 动脉中脉动流量的近似计算方法[J]. 力学季刊, 1999, 20(3): 208-215 |
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| 作者姓名： | 严育兵 姚大康 |
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| 作者单位： | 上海复旦大学生物力学实验室，上海复旦大学生物力学实验室，上海复旦大学生物力学实验室 上海 200433，上海 200433，上海 200433 |
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| 摘 要： | Ｗｏｍｅｒｓｌｅｙ曾给出动脉中血液脉动一的分析表达式以及对应于Ｗｏｍｅｒｓｌｅｙ数趋近于０和趋近于无穷大时的渐近表达式。本文在误差小于３％的条件下确定了Ｗｏｍｅｒｓｌｅｙ流量渐近表达式的适用，并找到了Ｗｏｍｅｒｓｌｅｙ数处于过渡区时用两段二次函数表示的近似流量表达式。这为计算和分析动脉中的脉动流量提供了一种快速简便的方法。
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| 关 键 词： | 动脉 流量 近似计算 脉动流量 |
AN APPROXIMATE METHOD FOR THE PULSATILE FLOW IN ARTERIES |
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| Yan Yubing Yao Dakang Liu Zhaorong. AN APPROXIMATE METHOD FOR THE PULSATILE FLOW IN ARTERIES[J]. Chinese Quarterly Mechanics, 1999, 20(3): 208-215 |
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| Authors: | Yan Yubing Yao Dakang Liu Zhaorong |
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| Abstract: | The analytical solution of blood flow in arteries was given by Womersley (1957) , with its asymptotic results when Womersley number inclined to be zero and to be infinity. In this paper the application scopes of Womersley s asymptotic results were determined, also at the rest interval simpler formulae of arterial blood flow expressed in two quadratic functions were obtained, while the deviations were controlled under 3 % respectively. Such result provides a rapid but simple method to analyze and calculate the pulsatile flow in arteries. |
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| Keywords: | arteries flow computation approximate expression. |
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