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. Author manuscript; available in PMC: 2012 Feb 1.
Published in final edited form as: Biomed Microdevices. 2011 Feb;13(1):69–87. doi: 10.1007/s10544-010-9472-8

Table 2.

Local Reynolds numbers and shear stresses for each region of interest. τ* and Re* denote the average shear stress and Reynolds number of the entire microfluidic chamber, based on Ergun and packed bed calculations. τcell denotes the shear stress in each region (as would be experienced by the seeded endothelial cells) and Re is the corresponding regional Reynolds number

Location QTotal =2 mL min−1
 QTotal =11 mL min−1
τ*=2.8 dyn cm−2
 τ*=15.6 dyn cm−2
Re*=31
 Re*=173
Re τcell, dyn cm−2 Re τcell, dyn cm−2
Wide Bend 7.05 1.45 35.69 7.34
Narrow Bend 6.36 1.31 34.49 7.10
Large Contraction 22.21 4.57 126.20 25.96
Small Contraction 17.76 3.65 98.54 20.27
Branch 3.47 0.71 17.86 3.67
Expansion 12.85 2.64 76.98 15.83
Obstruction 1.70 0.35 9.84 2.02
Node 4.68 0.96 23.06 4.74
Straight 5.22 1.07 28.74 5.91