THE FLOW OF WATER IN DRAIN TILE. 



27 



Table 4. — Elements of experiments for concrete tile — Continued. 



5-INCH TILE. 



Test No. 



Depth 



of 

 flow. 



(d) 



Area 



of 

 flow. 



(a) 



Hy- 

 draulic 

 radins. 



Dis- 

 charge. 



m 



Ve- 

 locity. 



9 

 Slope. 



Kutter 

 coeffi- 

 cient. 



(«) 



Chezy 

 coeffi- 

 cient. 



CO 



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 



.71 

 .50 

 .32 



.95 



.77 

 .54 

 .41 

 .31 



.75 

 .51 

 .38 

 .29 



.96 



.67 

 .47 

 .38 

 .27 



.95 

 .77 

 .47 

 .35 

 .31 



.98 

 .72 

 .54 

 .47 

 .33 



.96 

 .76 

 .56 

 .46 

 .31 



.97 

 .78 

 .63 

 .43 



Sq.ft. 



0. 1319 

 .1071 

 .0729 



. . 1332 

 .1016 

 .0667 

 .0377 



.1314 

 .1102 

 .0738 

 . 0524 

 .0346 



.1331 



.1078 

 .0C80 

 .0475 

 .0319 



.1323 



.0959 

 .0613 

 .0475 

 .0301 



.1314 



.1099 

 .0626 

 .0423 

 .0346 



.1331 

 .1034 

 .0742 

 .0614 

 .0380 



.1319 



. 1085 

 .0771 

 .0593 

 .0357 



.1327 

 .1123 



.0892 

 .0544 



0.99 



.99 

 .76 

 .50 

 .28 



Feet. 



0. 1169 



.1243 



.1076 



.1125 

 .1227 

 .1031 

 .0752 



.1179 

 .1251 

 .1082 

 .0907 

 .0715 



.1131 

 .1246 

 .1040 

 .0859 

 .0683 



.1160 



.1207 

 .0987 

 . 0859 

 .0659 



.1179 

 .1250 

 .0997 

 .0805 

 .0715 



.1131 

 .1233 



.1085 

 .0987 

 .0757 



.1169 

 .1247 

 .1104 

 .0970 

 .0729 



.1147 

 .12.54 

 .1174 

 .0926 



Cu.ft. 



per sec. 



0. 0844 



.0671 



.0346 



.1305 



.0969 

 .0448 

 .0196 



.1840 

 . 1608 

 .0848 

 . 0466 

 .0256 



.2303 

 .1853 

 .0828 

 .0404 

 .0150 



.3052 

 .2020 

 .1023 

 .0622 

 .0283 



.3563 

 .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 

 .071 

 .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 



2.711 

 2. 560 

 2.154 

 1.767 

 1.270 



3.218 

 3.003 

 3.124 

 2.6S0 

 1.935 



3.538 

 3.374 

 3.489 

 3.189 

 2.574 



3.891 



4.005 

 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 

 .0HX) 

 .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 

 86.1 

 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 

 76. 4 



6-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 



.348 



.0005 



.0152 



.484 



.97 



.1926 



.99 



.1375 



.2187 



1.136 



.0010 



.0104 



.384 



.77 



.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 



.237S 



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 



.7S3 



.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 formulas 26 and 28. 



