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动脉中脉动流量的近似计算方法
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
作者姓名:严育兵 姚大康
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
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。

关 键 词:动脉 流量 近似计算 脉动流量

AN APPROXIMATE METHOD FOR THE PULSATILE FLOW IN ARTERIES
Yan Yubing Yao Dakang Liu Zhaorong. AN APPROXIMATE METHOD FOR THE PULSATILE FLOW IN ARTERIES[J]. Chinese Quarterly Mechanics, 1999, 20(3): 208-215
Authors:Yan Yubing Yao Dakang Liu Zhaorong
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.
Keywords:arteries   flow   computation   approximate expression.
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