Table 2.

Computed average velocity, inlet diameter, Reynolds number, and Womersley number of ten-patient data for normal and rapid breathing

	Normal Breathing	Rapid Breathing
Average velocity (u)	2.40  $\pm$  0.51 m/s	2.42  $\pm$  0.17 m/s
Diameter (D)	14.34  $\pm$  1.02 mm
Reynolds number $\left(\mathrm{Re}=\frac{uD}{\nu }\right)$	2230  $\pm$  364	2206  $\pm$  359
Womersley number $\left(\mathrm{Wo}=\frac{D}{2}\sqrt{\frac{\omega }{\nu }}\hspace{0.17em}\right)$	2.42  $\pm$  0.17	4.82  $\pm$  0.34

Data are reported as mean ± standard deviation.