THE FLOW OF WATER IN DRAIN TILE. 



Table 3. — Elements of experiments for clay tile — Continued. 



25 



12-INCH TILE— Continued. 



Test No. 



373. 

 374. 

 375. 

 376. 

 377.. 

 378. 

 379. 

 380. 

 381.. 

 382. 

 383. 

 384. 



3851 

 386i 

 387. 

 388. 

 389. 

 390. 

 391. 

 392. 

 393. 

 394. 

 395. 

 396. 



397. 

 398. 

 399. 

 400. 

 401. 

 402. 

 403. 



404. 

 405. 

 406. 

 407. 

 408. 

 409. 



410. 

 411. 

 412. 



413. 



414. 

 415. 

 416. 



Depth 



of 

 flow. 



id) 



Feet. 



0.887 

 .853 

 .809 

 .773 

 .724 

 .693 

 .646 

 .603 

 .547 

 .500 

 .402 

 .303 



.974 

 .940 

 .878 

 .817 

 .741 

 .696 

 .644 

 .597 

 .552 

 .509 

 .409 

 .313 



.723 

 .638 

 .584 

 .563 

 .512 

 .388 

 .302 



.651 

 .598 

 .546 

 .494 

 .413 

 .307 



.496 

 .419 

 .321 



.459 

 .444 

 .403 

 .284 



090 

 .87 

 .82 

 .78 

 .73 

 .70 

 .66 

 .61 

 .56 

 .51 

 .41 

 .31 



.99 

 .95 

 .89 

 .83 

 .75 

 .71 

 .65 

 .61 

 .56 

 52 

 42 

 .32 



.73 

 .65 

 .59 

 .57 

 .52 

 .39 

 .31 



Area 



of 

 flow. 



(a) 



Sq.ft. 



07234 

 .7017 

 .6702 

 .6420 

 . 6007 

 .5734 

 .5300 

 .4893 

 .4349 

 .3886 

 .2925 

 .1992 



.7614 

 .7504 

 .7179 

 .6763 

 .6154 

 .5760 

 •-52S2 

 .4835 

 .4398 

 .3975 

 .2993 

 .2083 



.5998 

 .5225 

 .4708 

 .4505 

 .4004 

 .2790 

 .1983 



.5347 

 .4844 

 .4339 

 .3827 

 .3031 

 .2028 



.3847 

 .3090 

 .2157 



.3482 

 .3335 

 .2935 

 .1820 



0-95 

 .92 



.79 

 .75 

 .70 

 .64 

 .57 

 -51 

 .38 

 .26 



- 6 



Hy- 

 draulic 

 radius. 



Feet. 

 0- 263S 

 .2978 

 .3000 

 .2995 

 .2957 

 .2923 

 .2850 

 .2761 

 .2624 

 .2487 

 .2142 

 .1718 



.2640 

 .2811 

 .2952 

 .2998 

 .2975 

 .2927 

 .2846 

 .2748 

 .2638 

 .2514 

 .2169 

 .1765 



.2956 

 .2834 

 .2719 

 .2667 

 .2523 

 .2086 

 .1714 



.2858 

 . 2750 

 .2622 

 .2468 

 .2184 

 .1737 



.2474 

 .2207 

 .1801 



.2351 

 .2299 

 .2145 

 .1629 



Dis- 

 charge. 



(Q) 



Cu.ft. 

 per sec. 

 2. 2320 

 2.1840 

 2.0800 

 1.9450 

 1.7980 

 1.6100 

 1.4400 



1 2560 

 1.0260 



.8440 

 .5222 

 .2737 



3 0380 

 3.0030 



2 8400 

 2 5440 

 2. 1300 

 1.8400 

 1.5650 

 1.3550 

 1.1660 



.9838 

 .5981 

 .3259 



2.9890 

 2.5440 

 2.1480 

 2.0500 

 1.7400 

 1.0180 

 .6250 



2.9400 

 2.6170 

 2.2980 

 1.8400 

 1.2960 

 .6972 



2.0150 



1.5400 



.9694 



1.9600 



1.8575 



1.6150 



.8639 



Ve- 

 locity. 



(.V) 



Feet 

 per sec. 

 3.086 

 3.113 

 3. 103 

 3.030 

 2.992 

 2.809 

 2.717 

 2.567 

 2.360 

 2.173 

 1.785 

 1.374 



3.990 

 4. 002 

 3.956 

 3.762 

 3.461 

 3.195 

 2.963 

 2.803 

 2.651 

 2. 475 

 1.998 

 1.564 



4.983 

 4.869 

 4.563 

 4.551 

 4.346 

 3.651 

 3.153 



5.498 

 5.403 

 5.297 

 4.809 

 4.276 

 3.438 



5.239 

 4.984 

 4.495 



5. 630 

 5.570 

 5.525 



4.747 



Slope. 



0030 



00116 



.0030 



.0116 



.0030 



.0117 



.0030 



.0119 



. 0030 



.0120 



.0030 



.0124 



.0030 



.0126 



.0030 



.0129 



.0030 



.0134 



.0030 



.0138 



.0030 



.0147 



.0030 



.0158 



.0050 

 .0050 

 . 0050 

 .0050 

 . 0050 

 .0050 

 .0050 

 .0050 

 .6050 

 .00.50 

 . 0050 

 .0050 



.0075 

 .0075 

 .0075 

 .0075 

 . 0075 

 .0075 

 .0075 



-.0100 

 .0100 

 .0100 

 .1000 

 .0100 

 .0100 



.0125 

 .0125 

 .0125 



.0150 

 .0150 

 .0150 

 .0150 



Kutter 

 coeffi- 

 cient. 



(«) 



.0109 

 .0113 

 .0117 

 .0124 

 .0131 

 .0138 

 .0144 

 .0147 

 .0150 

 .0154 

 .0165 

 .0175 



.0114 

 .0114 

 .0117 

 .0117 

 .0117 

 .0120 

 .0119 



.0117 

 .0116 

 .0114 

 .0119 

 .0121 

 .1026 



.0122 

 .0118 

 .0114 



.0120 

 .0119 

 .0116 

 .0111 



Chezy 

 coeffi- 

 cient. 



(C) 



103.9 

 104.1 

 103.4 

 101.1 

 100.5 

 94.9 

 92.9 

 89.2 

 84.1 

 79.6 

 70.4 

 60.5 



109.8 

 106.8 

 103.0 

 97.2 

 89.7 

 83.5 

 78.6 

 75.6 

 73.0 

 69.8 

 60.7 

 52.7 



105.8 

 105.6 

 101.0 

 101.8 

 99.9 

 92.3 

 87.9 



102.8 

 103.0 

 103.5 

 96.8 

 91.5 

 82.5 



94.2 

 94.9 

 94.7 



94.8 

 94.9 

 97.0 

 96.0 



These tests used in deriving formulae 27 and 29. 



