Table 3

Theoretical value of Math, Re, Nu, and u for laminar flow of the catheter sensor in a 20 mm diameter tube.
Flow (L/min)
 Math(m/s)
 Re
 Nu
 Math(W/(m2·K))
0.0
 0.000
 N/A
 4.47
 1900
0.5
 0.027
 250
 17.3
 3400
1.0
 0.053
 500
 24.4
 4800
1.5
 0.080
 750
 29.9
 5880
2.0
 0.106
 1010
 34.5
 6790
2.5
 0.133
 1260
 38.6
 7600
3.0
 0.159
 1510
 42.3
 8320
3.5
 0.186
 1760
 45.7
 8990
4.0
 0.212
 2010
 48.8
 9610
4.5
 0.239
 2260
 51.8
 10190
5.0
 0.265
 2520
 54.6
 10740

Tangwongsan et al. BioMedical Engineering OnLine 2006 5:57   doi:10.1186/1475-925X-5-57