BLOOD VISCOELASTICITY FOR CONDITIONS OF PHYSIOLOGICAL FLOW IN SMALL ARTERIES

被引:3
|
作者
Federspiel, William J.
Cokelet, Giles R.
机构
[1] Univ Rochester, Sch Med & Dent, Dept Chem Engn, Rochester, NY 14642 USA
[2] Univ Rochester, Sch Med & Dent, Dept Radiat Biol & Biophys, Rochester, NY 14642 USA
关键词
Blood; rheology; Viscosity; Elasticity; Viscoelastic; Properties;
D O I
10.1080/00986448408911132
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The viscoelasticity of blood is quantified by studying the oscillatory flow of suspensions of RBC in plasma in 218 mu m and 400 mu m glass capillary tubes. The flow conditions are chosen to reflect normal physiological flow in small arterial vessels. Data are obtained for suspension hematocrits between 35 and 80 percent, and at physiological temperature (37 degrees C). The results indicate that the elastic component of the viscoelasticity of blood is effectively negligible for the conditions of this study: the measured pressure gradient-flowrate relationship is dominated by the viscous component of blood viscoelasticity.
引用
收藏
页码:275 / 284
页数:10
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