Hemodynamics, Dr. D. Penney
Table 5.01. Velocity, diameter, wall shear rate and Reynolds number. Average blood velocity, wall shear rates and Reynolds numbers
in human blood vessels (assuming Poiseuille flow of a Newtonian fluid). {Calculation of Reynolds number based on diameter, assume Eta = 3.0}.
| Vessel |
(cm / sec.) |
Dia. (cm.) |
Mean wall Shear Rate |
Reynolds Number |
| Aorta |
48 | 2.5 | 155 | 3,400 |
| Artery |
45 | 0.4 | 900 | 500 |
| Arteriole |
5 | 0.005 | 8,000 | 0.7 |
| Capillary |
0.1 | 0.0008 | 1,000 | 0.002 |
| Venule |
0.2 | 0.002 | 800 | 0.01 |
| Vein |
10 | 0.5 | 160 | 140 |
| Vena Cava |
38 | 3.0 | 100 | 3,300 |
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