THE FLOW OF WATER IN DRAIN TILE. 
27 
Table 4. — Elements of experiments for concrete tile — Continued, 
5-INCH TILE. 
Depth 
of 
flow. 
id) 
Area 
of 
flow. 
(a) 
Hy- 
draulic 
radius. 
(72) 
Dis- 
charge. 
(Q) 
Ve- 
locity. 
(F) 
Slope. 
is) 
Kutter 
coeffi- 
cient. 
in) 
Chezy 
coeffi- 
cient. 
iC) 
Feet. 
0.396 
.308 
.221 
.405 
.293 
.206 
.134 
.393 
.317 
.223 
.171 
.126 
.404 
.310 
.209 
.159 
.119 
.398 
.278 
.193 
.159 
.114 
.393 
.316 
.196 
.146 
.126 
.404 
.298 
.224 
.195 
.135 
.396 
.312 
.231 
.188 
.129 
.401 
.323 
. 261 
.176 
0.96 
.75 
.54 
Sq.ft. 
0. 1319 
. 1071 
.0729 
.1332 
.1016 
.0607 
.0377 
. 1314 
.1102 
.0738 
.0524 
.0346 
.1331 
.1078 
. 0680 
.0475 
.0319 
.1323 
.0959 
.0613 
.0475 
.0301 
.1314 
.1099 
.0026 
.0423 
.0346 
.1331 
.1034 
.0742 
.0614 
. 1319 
.1085 
.0771 
.0593 
.0357 
. 1327 
.1123 
.0892 
.0544 
0.99 
.80 
.55 
.99 
.76 
.50 
.28 
.98 
.82 
.55 
.39 
.26 
.99 
.81 
.51 
.36 
.24 
Feet. 
0. 1169 
.1243 
.1076 
. 1125 
.1227 
.1031 
.0752 
.1179 
.1251 
.1082 
.0907 
.0715 
.1131 
.1246 
.1040 
.0859 
.0683 
.IIGO 
.1207 
.0987 
.0859 
. 0059 
. 1179 
.1250 
.0997 
.0805 
.0715 
.1131 
.1233 
.1085 
.0987 
.0757 
.1169 
.1247 
.1104 
.0970 
.0729 
.1147 
.1254 
.1174 
.0926 
Cu.ft. 
per see. 
0. 0844 
.0671 
.0346 
. 1305 
.0969 
.0448 
.0196 
.1840 
. 1608 
.0848 
. 0466 
.0256 
.2303 
.1853 
.0828 
.0404 
.0150 
.3052 
.2020 
.1023 
.0622 
.0283 
.3503 
.2814 
.1349 
.0748 
.0439 
.4282 
.3105 
.2318 
. 1644 
.0736 
.4669 
.3660 
.2688 
.1892 
.0920 
.5162 
. 4565 
.3150 
.1548 
Feet 
per sec. 
0.640 
.627 
.475 
.954 
.671 
.521 
1.400 
1.459 
1. 150 
.890 
.740 
1.730 
1.719 
1.218 
.851 
.470 
2.307 
2.107 
1. 668 
1.310 
.940 
2.711 
2.560 
2.154 
1.767 
1.270 
3.218 
3.003 
3.124 
2. 680 
1.935 
3.538 
3.374 
3.489 
3. 189 
2.574 
3.891 
4.065 
3.533 
2.846 
0. 0005 
.0005 
.0005 
.0010 
.0010 
.0010 
.0010 
.0020 
.0020 
.0020 
.0020 
.0020 
.0030 
. 0030 
.0030 
.0030 
.0030 
. 0050 
.0050 
.0050 
, 0050 
.0050 
.0075 
.0075 
.0075 
.0075 
.0075 
.0100 
.0100 
.0100 
.0100 
.0100 
.0125 
.0125 
.0125 
.0125 
.0125 
.0150 
.0150 
.0150 
.0150 
0.0110 
.0116 
.0131 
.0103 
.0111 
.0130 
.0130 
.0106 
.0107 
.0117 
.0127 
.0126 
.0104 
.0110 
.0127 
. 0146 
.0191 
.0103 
.0113 
.0119 
.0130 
.0139 
.0107 
.0116 
.0115 
.0117 
.0138 
.0103 
.0114 
.0102 
.0109 
.0117 
.0106 
.0114 
.0104 
.0102 
.0101 
.0104 
.0107 
.0114 
.0116 
83.7 
79.5 
64.7 
92.4 
66^1 
60.1 
91.2 
92.2 
78.2 
66.1 
61.9 
93.9 
88.9 
69.0 
53.0 
32.9 
95.8 
85.8 
75.1 
63.2 
52.2 
91.2 
83.6 
78.8 
71.9 
54.8 
95.7 
85.5 
94.9 
85.3 
70.3 
92.6 
85.4 
93.9 
91.6 
85.3 
93.8 
93.8 
84.2 
70.4 
-INCH TILE. 
0.492 
0.99 
0. 1937 
0.99 
0. 1325 
0. 1366 
0.705 
0.0005 
0.0111 
.391 
.79 
.1637 
.84 
. 1510 
.0888 
.542 
.0005 
.0145 
.282 
.57 
.1136 
.59 
.1340 
.0463 
.408 
.0005 
.0164 
.225 
.45 
.0853 
.44 
.1163 
.0343 
.401 
.0005 
.0154 
.173 
.35 
.0601 
.31 
.0958 
.0206 
.343 
.0005 
.0152 
.484 
.97 
.1926 
.99 
.1375 
.2187 
1.136 
.0010 
.0104 
.384 
.1608 
.83 
. 1508 
.1795 
1.116 
.0010 
.0110 
.298 
.60 
.1214 
.63 
.1379 
.1070 
.881 
.0010 
.0126 
.222 
.45 
.0838 
.43 
.1152 
.0535 
.638 
.0010 
.0142 
.176 
.35 
.0615 
.32 
.0971 
.0295 
.480 
.0010 
.0159 
.481 
.97 
.1921 
.99 
.1390 
.3026 
1.575 
.0020 
.0107 
.371 
.75 
.1553 
.80 
.1498 
.2378 
1.531 
.0020 
.0115 
.293 
.59 
.1190 
.61 
.1368 
.1578 
1.326 
.0020 
.0121 
.216 
.43 
.0809 
.42 
.1130 
.0880 
1.088 
.0020 
.0124 
.170 
.34 
.0587 
.30 
.0944 
.0459 
.783 
.0020 
.0142 
86.6 
62.4 
49.8 
52.6 
49.6 
96.8 
90.9 
75.0 
59.5 
48.7 
94.5 
88.5 
80.2 
72.4 
57.0 
1 These tests used in deriving formula 26 and 28. 
