THE FLOW OF WATEE IN DKAIN TILE. 
19 
Table 3. — Elements of experiments for clay tile. 
4-INCH TILE. 
1 
Test No. 
2 
Depth 
of 
flow. 
(d) 
3 
d 
D 
4 
Area 
of 
flow. 
(a) 
5 
a 
A 
6 
Hy- 
draulic 
radius. 
(R) 
Dis- 
charge. 
(Q) 
Ve- 
locity. 
{V) 
9 
Slope. 
is) 
10 
Kutter 
coeffi- 
cient. 
in) 
11 
Chezy 
coeffi- 
cient. 
(C, 
11 . . 
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 
.80 
.66 
.51 
.38 
.92 
.72 
.63 
.49 
.36 
.93 
.84 
.77 
.66 
.50 
.38 
.98 
.94 
.85 
.74 
.62 
.48 
.39 
.92 
.88 
.83 
.69 
.60 
.44 
.97 
.90 
.80 
.75 
.52 
.44 
.97 
.92 
.88 
.76 
.67 
.49 
.37 
Sq.ft. 
0.0901 
.0866 
.0843 
.0709 
.0602 
.0116 
.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 
. 0898 
.0874 
.0843 
.0736 
.0647 
.0447 
.0306 
0.99 
.96 
.93 
.78 
.66 
.46 
.36 
.99 
.99 
.89 
.71 
.46 
.37 
.99 
.98 
.89 
.86 
.70 
.51 
.35 
.96 
.77 
.66 
.49 
.33 
.97 
.90 
.83 
.70 
.50 
.35 
.99 
.98 
.90 
.80 
.65 
.48 
.37 
.96 
.93 
.89 
.73 
.63 
.43 
99 
.94 
.85 
.80 
.53 
.42 
.99 
.96 
.93 
.81 
.71 
.49 
.34 
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 
.0688 
Cu.ft. 
per sec . 
0.0547 
.0562 
.0487 
.0404 
.0274 
.0177 
.0098 
.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 
.0651 
.0425 
.2159 
.2068 
.1984 
.1476 
.1140 
.0615 
. 2610 
.2172 
.2124 
. 1951 
.1032 
.0736 
.2890 
.2907 
.2814 
.2318 
.2026 
.1322 
.0720 
Feet 
per sec. 
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 
.608 
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 
. 01.59 
.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 
88.8 
Ql 4 
21 
3 
80.8 
79.9 
65.6 
66.5 
51.1 
80 5 
4 
5 
6 
7 
81 
91 
84.9 
70 3 
10 
11 
88.2 
62.0 
57 4 
12 
13 
141 
78.3 
82 1 
15 
16 
81.0 
81 1 
17 ■ ■" 
18 . 
80 2 
19 
68 1 
20 
50 
211 
81 3 
22 ■ ' 
71 1 
23... .r:.... 
67.4 
51 8 
24 
25 
42 7 
261 
80 5 
27 
28 
80.5 
77 6 
29 
30.. 
55 3 
31... 
43.9 
80.9 
79.3 
77 1 
321 , 
331 
34 
35--.. 
73 9 
36 
63 6 
37--. . 
60 4 
38 ■ "■ 
391 . 
78 3 
40 . 
76.7 
76 5 
41 
42 
70.4 
64 8 
43 
44 
56 4 
451 
85 5 
46 
81 1 
47 
76 5 
48 
75 
49 
65.5 
50 
62.4 
511 
85.3 
521 
85.9 
53 
85.2 
54 
80.2 
55 
81.2 
56 
83.1 
57 
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 
59 1 
81.0 
60 
84.6 
These tests used in deriving formulae 27 and 29. 
