| ω1/ω = | 1.0 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 | 0.4 | 0.3 | 0.2 | 0.1 |
| ζv = | 0.00 | .09 | .39 | .95 | 2.08 | 4.02 | 8.12 | 17.8 | 44.5 | 193 |
Sluice in Cylindrical Pipe (fig. 93).
| Ratio of height of opening to diameter of pipe | 1.0 | 7⁄8 | 3⁄4 | 5⁄8 | 1⁄2 | 3⁄8 | 1⁄4 | 1⁄5 |
| ω1/ω = | 1.00 | 0.948 | .856 | .740 | .609 | .466 | .315 | .159 |
| ζv = | 0.00 | 0.07 | 0.26 | 0.81 | 2.06 | 5.52 | 17.0 | 97.8 |
| Fig. 93. | Fig. 94. |
Cock in a Cylindrical Pipe (fig. 94). Angle through which cock is turned = θ.
| θ = | 5° | 10° | 15° | 20° | 25° | 30° | 35° |
| Ratio of cross sections | .926 | .850 | .772 | .692 | .613 | .535 | .458 |
| ζv = | .05 | .29 | .75 | 1.56 | 3.10 | 5.47 | 9.68 |
| θ = | 40° | 45° | 50° | 55° | 60° | 65° | 82° |
| Ratio of cross sections | .385 | .315 | .250 | .190 | .137 | .091 | 0 |
| ζv = | 17.3 | 31.2 | 52.6 | 106 | 206 | 486 | ∞ |
Throttle Valve in a Cylindrical Pipe (fig. 95)
| θ = | 5° | 10° | 15° | 20° | 25° | 30° | 35° | 40° |
| ζv = | .24 | .52 | .90 | 1.54 | 2.51 | 3.91 | 6.22 | 10.8 |
| θ = | 45° | 50° | 55° | 60° | 65° | 70° | 90° |
| ζv = | 18.7 | 32.6 | 58.8 | 118 | 256 | 751 | ∞ |