THE FLOW OF WATER IN DRAIN TILE. 
29 
Table 4. — Elements of experiments for cona-ete tile — Continued. 
8-INCH TILE— Continued. 
1 
Test No. 
2 
Depth 
of 
flow. 
id) 
3 
d 
D 
4 
Area 
of 
flow. 
(a) 
5 
a 
A 
G 
Hy- 
draulic 
radius. 
(E) 
7 
Dis- 
charge. 
(Q) 
8 
Ve- 
locity. 
V 
9 
Slope. 
(s) 
10 
Kutter 
coeffi- 
cient. 
in) 
11 
Chezy 
coeffi- 
cient. 
(C) 
585 1 
Feet. 
0.643 
.623 
.553 
.489 
.445 
.341 
.262 
.182 
.647 
.628 
.623 
.566 
.512 
.443 
.318 
.270 
.189 
.647 
.633 
.546 
.495 
.442 
.335 
.260 
.170 
.645 
.642 
. 559 
.464 
.415 
.309 
.225 
.153 
.642 
.600 
.593 
.553 
.487 
.426 
.324 
.244 
.163 
.634 
.616 
.545 
.482 
.414 
..323 
.245 
.165 
0.98 
.95 
.84 
.74 
.68 
.52 
.40 
.28 
.98 
.95 
.95 
.86 
.78 
.67 
.48 
.41 
.29 
.98 
.96 
.83 
.75 
.67 
.51 
.39 
.2,6 
.98 
.98 
.85 
.71 
.63 
.47 
.34 
.23 
.98 
.91 
.90 
.84 
.74 
.65 
.49 
.37 
.25 
.96 
.94 
.83 
.73 
.63 
.49 
.37 
.25 
Sq.ft. 
0.3385 
.3334 
.3053 
.2712 
.2449 
. 1780 
. 1263 
.0767 
.3392 
.3349 
.3334 
.3115 
.2841 
.2437 
.1629 
. 1315 
.0808 
.3392 
.3362 
.3019 
.2746 
.2431 
.1741 
.1250 
.0697 
.3389 
.3383 
.3082 
.2565 
.2261 
. 1570 
.1028 
.0601 
.3383 
.3257 
.3229 
.3054 
.2701 
.2331 
.1668 
.1148 
.0656 
.3365 
.3313 
.3015 
.2671 
.2255 
.1662 
.115S 
.0668 
0.99 
.98 
.90 
.80 
.72 
.52 
.37 
.23 
.99 
.98 
.98 
.92 
.83 
.72 
.48 
.39 
.24 
.99 
.99 
.89 
.81 
.71 
.51 
.37 
.21 
.99 
.99 
.91 
. 75 
.66 
.46 
.30 
.18 
.99 
.96 
.95 
.90 
.79 
.68 
.49 
.34 
.19 
.99 
.97 
.89 
.78 
.66 
.49 
.34 
.19 
Feet. 
0. 1813 
.1894 
.2001 
.1981 
.1928 
.1682 
. 1405 
.1051 
.1789 
.1877 
.1894 
.1993 
.1999 
.1924 
.1609 
. 1436 
.1085 
.1790 
. 1860 
.2003 
.1988 
.1922 
.1664 
.1397 
.0992 
. 1803 
.1818 
. 1998 
. 1954 
.1870 
. 1579 
.12.50 
.0906 
. 1818 
. 1950 
.1962 
.2001 
.1979 
.1893 
.1629 
. 1332 
.0957 
.1856 
. 1915 
.2003 
.1974 
. 1868 
.1626 
.1336 
.0967 
Cu.ft. 
per sec. 
0.7S70 
.7750 
.7240 
.6224 
.5440 
.3354 
. 1886 
.0824 
1.0105 
1.0164 
.9930 
.9108 
.8028 
.6440 
.3610 
.2608 
.1140 
1. 1900 
1. 2280 
1.0880 
.9658 
.8204 
.5042 
.3096 
.1215 
1.3580 
1.3630 
1.2680 
1.0470 
.8788 
.5318 
.2899 
.1283 
1.5120 
1.4880 
1. 4700 
1.40S0 
1.2040 
.9928 
.6224 
.3620 
.1602 
1.6150 
1. 6425 
1.5060 
1.2900 
1.0140 
.6524 
.3925 
.1879 
Feet 
per sec. 
02.325 
2.324 
2.371 
2.295 
2.221 
1.884 
1.492 
1.075 
2.979 
3. 035 
2.978 
2.924 
2. 825 
2.642 
2.216 
1.983 
1.411 
3.508 
3.652 
3.603 
3.517 
3. 375 
2.896 
2.476 
1.743 
4.007 
4.030 
4.114 
4.082 
3.886 
3.388 
2.820 
2.136 
4.470 
4.569 
4.553 
4.611 
4.459 
4. 260 
3.731 
3.15S 
2.441 
4.889 
4.959 
4.996 
4.829 
4.500 
3.926 
3.399 
2.813 
0.0030 
.0030 
.0030 
.0030 
.0030 
.0030 
. 0030 
.0030 
.0050 
. 0050 
.0050 
. 0050 
.0050 
.0050 
.0050 
.0050 
.0050 
.0075 
.0075 
.0075 
.007* 
.0075 
.0075 
.0075 
.0075 
.0100 
.0100 
.0100 
.0100 
.0100 
.0100 
.0100 
.0100 
.0125 
.0125 
.0125 
.0125 
.0125 
.0125 
.0125 
.0125 
.0125 
.0150 
.0150 
.0150 
.0150 
.0150 
. 0150 
.0150 
.0150 
0.0109 
.0112 
.0114 
.0116 
.0118 
.0123 
.0131 
.0140 
.0109 
.0110 
.0113 
.0117 
.0121 
.0124 
. 0128 
.0130 
.0141 
.0112 
.0112 
.0117 
.0118 
.0120 
.0122 
.0125 
.0132 
.0114 
.0114 
.0117 
.0117 
.0118 
.0119 
.0120 
.0120 
.0115 
.0118 
.0118 
.0118 
.0120 
.0121 
.0122 
.0123 
.0122 
.0116 
.0115 
.0118 
.Oi20 
.0122 
.0126 
.0123 
.0120 
99.7 
5861 
97.5 
587 
96.8 
588 
94.1 
589 
92.4 
590 
83.9 
591 - - 
72.7 
592 
60.6 
5§3i ... . 
99.6 
594 1 
595 
99.1 
96.8 
596 
92.7 
597 --- - 
89.4 
598 
85.2 
599 
78.1 
600 
74.0 
601 
60.6 
6021 
95.8 
6031 
604 
97.0 
93.0 
605 
91.1 
606 
88.9 
607 
82.0 
608 
76.5 
609 
63.9 
6101 
94.4 
6111 
94.5 
612 
92.1 
613 
92.3 
614 
89.9 
615 
85.3 
616 
79.8 
617 
71.0 
618 1 
93.8 
619 1 
92.5 
620 
91.9 
621 
92.2 
622 
89.6 
623 
87.6 
624 
82.7 
625 
77.3 
626 
70.6 
627 1 
92.7 
628 1 
92.5 
629 
91.1 
630 
88.7 
631 
85.0 
632 
79.5 
633 
75.9 
634 
73.9 
10-INCH TILE. 
6351 
6361 
637. 
638. 
639. 
640. 
641. 
642. 
643- 
644. 
645. 
0.818 
0.99 
0. 5366 
0.99 
0.2213 
0. 4818 
0.898 
0. 0005 
0. 0125 
.783 
.95 
.5265 
.98 
.2379 
.5150 
.978 
.0005 
.0122 
.739 
.89 
. 5068 
.94 
.2475 
.5114 
1.009 
.0005 
.0122 
.706 
.85 
.^887 
.91 
.2508 
.4910 
1.005 
.0005 
.0123 
.666 
.81 
.4638 
.86 
.2518 
.4429 
.955 
.0005 
.0128 
.616 
.75 
.4293 
.80 
.2491 
.4324 
1.007 
.0005 
.0122 
.579 
.70 
.4018 
.75 
. 2451 
.4188 
1.042 
.00Q5 
.0118 
.551 
.67 
.3803 
.71 
.2408 
.3660 
.962 
.0005 
.0124 
.474 
.57 
.3186 
.59 
.2243 
.2780 
.873 
.0005 
.0129 
.416 
.50 
.2708 
.50 
.2076 
.2408 
.889 
.0005 
.0122 
.323 
.39 
.1944 
.36 
.1741 
.1470 
.756 
.0005 
.0123 
.241 
.29 
.1302 
o24 
.1380 
.0832 
.639 
.0005 
.0122 
85.4 
89.7 
90.7 
89.7 
8i.l 
90.3 
94.1 
87.7 
82.4 
87.3 
81.1 
77.0 
1 These tests used in deriving formulse 26 and 28. 
