THE FLOW OF WATER IN DRAIN TILE. 



19 



Table 3. — Elements of experiments for clay tile. 

 4-INCH TILE. 



Test No. 



Depth 



of 

 flow. 



(<2) 



Area 



of 

 flow. 



(a) 



Hy- 

 draulic 

 radius. 



(R) 



Dis- 

 charge. 



(Q) 



Ve- 

 locity. 



(V) 



Slope. 



Kutter 

 coeffi- 

 cient. 



(«) 



Chezy 

 coeffi- 

 cient. 



(C) 



li . 



2i 

 3. 

 4.. 

 5.. 



8i. 



141. 

 15.. 

 16.. 

 17.. 

 18.. 

 19-- 

 20-- 



211. 

 22.- 

 23.- 

 24.. 

 25-- 



261. 

 27.. 

 28.. 

 29.. 

 30.. 

 31.. 



321. 

 33i. 

 34.. 

 35.- 

 36.. 

 37.. 

 38.. 



39i. 

 40.. 

 41.. 



42.. 

 43.. 



44.'. 



451. 

 46.. 

 47.. 

 48.. 

 49.. 

 50.. 



5U. 

 52i. 

 53.. 

 54.. 

 55-. 

 56.. 

 57.. 



Feet. 



0.332 

 .309 

 .298 

 .248 

 .214 

 .159 

 .131 



.331 

 .327 

 .285 

 .228 

 .160 

 .136 



.329 

 .321 

 .283 

 .271 

 .223 

 .173 

 .129 



.313 

 .244 

 .213 

 .166 

 .123 



.317 

 .287 

 .263 

 .223 

 .170 

 .128 



.332 



.320 

 .288 

 .253 

 .209 

 .164 

 .134 



.312 

 .298 

 .283 

 .233 

 .205 

 .151 



.331 

 .304 

 .270 

 .254 

 .177 

 .148 



.329 

 .313 



.298 

 .257 

 .228 

 .168 

 .126 



0.98 

 .91 

 .88 

 .73 

 .63 

 .47 

 .39 



.97 

 .96 

 .84 

 .67 

 .47 

 .40 



.97 

 .95 

 .83 



Sq.ft. 



0.0901 

 .0866 

 .0843 

 .0709 

 .0602 

 .0416 

 .0322 



.0900 

 .0896 

 .0812 

 .0647 

 .0420 

 .0339 



.0898 

 .0887 

 .0807 

 .0775 

 .0631 

 .0464 

 .0316 



.0874 

 .0697 

 .0598 

 .0440 

 .0296 



.0881 

 .0817 

 . 0753 

 .0631 

 .0454 

 .0313 



.0901 

 .0886 

 .0819 

 .0724 

 .0585 

 .0434 

 .0332 



.0872 

 .0843 

 .0807 

 .0663 

 .0572 

 .0389 



.0900 

 .0856 

 .0773 

 .0727 

 .0478 

 .0379 



.0874 

 .0843 

 .0736 

 .0647 

 .0447 

 .0306 



.93 

 .78 

 .66 

 .46 

 .36 



Feet. 

 0.0935 

 .1007 

 .1023 

 . 1018 

 .0965 

 .0813 

 .0708 



.0940 

 .0958 

 .1032 

 .0992 

 .0817 

 .0728 



.0950 

 .0979 

 .1033 

 .1034 

 .0983 

 .0859 

 .0700 



.1000 

 .1013 

 .0963 

 .0837 

 .0675 



.0990 

 .1032 

 .1031 

 .0983 

 .0850 

 .0696 



.0935 

 .0982 

 .1031 

 .1023 

 .0954 

 .0830 

 .0720 



.1002 

 .1023 

 .1033 

 .1000 

 .0946 

 .0785 



.0940 

 .1016 

 .1033 

 .1024 

 .0871 

 .0774 



.0950 

 .1000 

 .1023 

 .1027 

 .0992 

 .0843 



Cu.ft. 

 per see . 



0.0547 

 .0562 

 .0487 

 .0404 

 .0274 

 .0177 



.0703 

 .0744 

 .0580 

 .0568 

 .0235 

 .0166 



.0969 

 .1019 

 .0940 

 .0904 

 .0710 

 .0414 

 ■ 0187 



.1230 

 .0864 

 .0685 

 .0361 

 .0180 



. 1578 

 .1494 

 .1327 

 .0978 

 .0517 

 .0256 



.1931 

 .1905 

 .1756 

 .1482 

 .0996 

 . 0654 

 .0425 



.2159 

 .2068 

 .1984 

 .1476 

 .1140 

 .0615 



.2640 

 .2472 

 .2124 

 .1951 

 .1032 

 .0736 



.2890 

 .2907 

 .2814 

 .2318 

 .2026 

 .1322 

 .0720 



Feet 

 per see. 

 0.607 

 .649 

 .578 

 .570 

 .456 

 .424 

 .304 



.780 

 .831 

 .714 

 .878 

 .560 

 .490 



1-079 

 1.148 

 1.165 

 1.166 

 1. 125 

 .892 

 .592 



1.408 



1.240 



1.145 



.820 



1.792 

 1.829 

 1.762 

 1.550 

 1.139 

 .819 



2.142 

 2.151 

 2.143 

 2.047 

 1.702 

 1.508 

 1.279 



2.477 

 2.453 

 2.459 

 2.227 

 1.994 

 1.579 



2.932 

 2.888 

 2.749 

 2.683 

 2.161 

 1.941 



3.218 

 3.328 

 3.338 

 3.150 

 3.132 

 2.957 

 2.353 



0. 0005 

 .0005 

 .0005 

 .0005 

 .0005 

 .0005 

 .0005 



.0010 

 .0010 

 .0010 

 .0010 



.0010 



.0010 



.0020 

 .0020 

 .0020 

 .0020 

 .0020 

 .0020 

 .0020 



.0030 

 .0030 

 .0030 

 .0030 

 .0030 



.0050 

 .0050 

 .0050 

 .0050 

 .0050 

 .0050 



.0075 

 .0075 

 .0075 

 .0075 

 .0075 

 .0075 

 .0075 



.0100 

 .0100 

 .0100 

 . 0100 

 .0100 

 .0100 



.0125 

 .0125 

 .0125 

 .0125 

 .0125 

 .0125 



.0150 

 .0150 

 .0150 

 .0150 

 .0150 

 .0150 

 .0150 



0.0101 

 .0100 

 .0110 

 .0111 

 .0126 

 .0120 

 .0139 



.0110 

 :0106 

 .0123 

 .0104 

 .0128 

 .0131 



.0113 

 .0111 

 .0113 

 .0112 

 .0113 

 .0122 

 .0145 



.0112 

 .0123 

 .0127 

 .0148 

 .0161 



.0113 

 .0114 

 .0117 

 .0125 

 .0142 

 . 0159 



.0111 

 .0114 

 .0118 

 .0121 

 .0133 

 .0133 

 .0137 



.0116 

 .0118 

 .0118 

 .0125 

 .0131 

 .0138 



.0107 

 .0113 

 .0120 

 .0120 

 .0127 

 .0128 



.0108 

 .0108 

 .0110 

 .0114 

 .0113 

 .0107 

 .0111 



91.4 

 80.8 

 79.9 

 65.6 

 66.5 

 51.1 



70.3 

 88.2 

 62.0 



57.4 



78.3 

 82.1 

 81.0 

 81.1 

 80.2 

 68.1 

 50.0 



81.3 

 71.1 

 67.4 

 51.8 

 42.7 



80.5 

 80.5 

 77.6 

 69.9 

 55.3 

 43.9 



79.3 

 77.1 

 73.9 

 63.6 

 60.4 

 55.0 



78.3 



76.7 

 76.5 

 70.4 

 64.8 

 56.4 



85.5 

 81.1 

 76.5 

 75.0 

 65.5 

 62.4 



85.3 

 85.9 

 85.2 

 80.2 

 81.2 

 83.1 

 73.3 



5-INCH TILE. 



581 



0. 404 

 .390 

 .350 



0.96 

 .93 

 .83 



0. 1364 

 .1338 

 .1231 



0.99 

 .97 

 .89 



0. 1180 

 .1225 

 .1275 



0. 0868 

 .0848 

 .0832 



0.636 

 .634 

 .676 



0. 0005 

 .0005 

 .0005 



0.0111 

 .0114 

 .0112 



82.8 



591 



81.0 



60 



84.6 



1 These tests used in deriving formulae 27 and 29. 



