TABLE 1.
τavg
(dyne/cm2) |
texp (s) | No. of loops |
Tubing diameter (mm) |
Tubing length (cm) |
Outflow rate (ml/min) |
SA (dyne- s/cm2) |
|
---|---|---|---|---|---|---|---|
a) High shear,
single passage |
250 | 0.100 | 1 | 0.366 | 22.95 | 14.44 | 25 |
500 | 0.050 | 1 | 0.366 | 22.95 | 28.88 | 25 | |
1000 | 0.025 | 1 | 0.366 | 22.95 | 57.76 | 25 | |
b) Low shear,
multiple passages |
15 | 80.146 | 2 | 0.366 | 1100 | 0.87 | 2412 |
15 | 80.146 | 4 | 0.366 | 1100 | 0.87 | 4833 | |
15 | 80.146 | 6 | 0.366 | 1100 | 0.87 | 7253 | |
15 | 80.146 | 8 | 0.366 | 1100 | 0.87 | 9674 | |
15 | 80.146 | 10 | 0.366 | 1100 | 0.87 | 12094 | |
c) Variable
shear and exposure times |
2.5 | 6.000 | 1 | 0.8 | 30 | 1.51 | 15 |
25 | 0.600 | 6 | 0.8 | 30 | 15.08 | 112 | |
50 | 0.300 | 12 | 0.8 | 30 | 30.16 | 228 | |
100 | 0.150 | 25 | 0.8 | 30 | 60.32 | 479 | |
150 | 0.100 | 37 | 0.8 | 30 | 90.48 | 711 | |
200 | 0.075 | 50 | 0.8 | 30 | 120.64 | 962 | |
250 | 0.060 | 62 | 0.8 | 30 | 150.80 | 1194 | |
300 | 0.050 | 74 | 0.8 | 30 | 180.96 | 1426 | |
350 | 0.050 | 74 | 0.8 | 35 | 211.12 | 1611 | |
400 | 0.050 | 74 | 0.8 | 40 | 241.27 | 1796 | |
500 | 0.063 | 74 | 0.38 | 30 | 32.32 | 2883 | |
600 | 0.053 | 120 | 0.38 | 30 | 38.79 | 4304 |
Shear stress, exposure time, tubing parameters, and stress accumulation (SA) values for all conditions.