心血管内流场的高质量模拟实验研究（Ⅰ）──动态流体双折射测试原理与分析方法  

Experimental Studies on Fine Simulation of Blood Flow in Cardiovascular Modeles(Ⅰ)──The measuring principle and analysing method of the dynamic flow birefringence

作　　者：孙永达[1] 贾有权[1] 

机构地区：[1]天津大学

出　　处：《实验力学》1996年第1期8-11,共4页Journal of Experimental Mechanics

基　　金：国家自然科学基金;总后科研基金

摘　　要：本文系统地讨论了以动态流体双折射方法实现心血管内流场的高质量模拟测试的基本理论和实用分析方法。首先，分析了稳态流动和振荡剪切流中光──力学关系的差异，提出脉动流中简化的光──力学关系假设，然后给出其适用于低频脉动流动的实验验证。为使医学和生物力学研究人员易于掌握，又提出一种简单新颖的局域分析法。The principle and method of fine simulation of blood flow in cardiovascular modeles are extensively introduced by means of the dynamic flow birefringence technique.The stress-optic relations in the steady flow and in the oscillatory shear flow are compared,and their differences are analysed. Then, an assumption of a simplified stress-optic relation in a pulsatile flow is suggeSted and experimental proof that this assumption is suitable for loW frequency pulsatile flow is given. In order to make it easy for research workers in medical science and biomechanics to learn,a simplified method used for analysing the local flow -the local integration method -is developed.

关 键 词：流体双折射 血流动力学 流动显示 

分 类 号：R318.01[医药卫生—生物医学工程] R331.3[医药卫生—基础医学]