THE FLOW OF WATER IN DRAIN TILE. 31 



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

 10-INCH TILE— Continued. 



1 



Depth 



of 

 flow. 



(d) 



Area 



of 

 flow. 



(a) 



Hy- 

 draulic 

 radius. 



(R) 



7 



8 



9 



10 



Dis- 

 charge. 



Ve- 

 locity. 



Slope. 



Kutter 



coeffi- 

 cient- 



(Q) 



(.V) 



W 



Cm) 



Cu.ft. 



Feet 







per sec. 



per sec. 







2.1150 



3.962 



0. 0075 



0.0118 



2. 0900 



3.927 



. 0075 



.0120 



2. 0850 



3.972 



. 0075 



.0121 



2. 0560 



4.112 



. 0075 



.0121 



2. 0440 



4.125 



. 0075 



.0120 



1. 8870 



4.110 



. 0075 



.0121 



1. 7700 



4.050 



. 0075 



.0122 



1.5120 



3.828 



. 0075 



.0126 



1. 3800 



3.706 



. 0075 



.0128 



1. 1560 



3.512 



. 0075 



.0129 



.8044 



3.045 



. 0075 



.0136 



.5306 



2. 729 



. 0075 



.0133 



.2600 



2.211 



.0075 



.0131 



2. 4060 



4.542 



.0100 



.0121 



2.4210 



4. 574 



.0100 



.0120 



2. 20S0 



4.663 



.0100 



.0123 



2. 0560 



4.727 



.0100 



.0122 



2. 0050 



4. 655 



.0100 



.0123 



1. 8840 



4. 552 



.0100 



.0124 



1. 6450 



4.308 



.0100 



.0128 



1. 3750 



4.157 



.0100 



.0127 



.9930 



3.795 



.0100 



.0128 



.6238 



3. 156 



.0100 



.0134 



.2318 



2.203 



.0100 



. 0141 



2. 7040 



5. 055 



.0125 



.0119 



2. 7220 



5.092 



.0125 



.0118 



2. 6890 



5.040 



.0125 



.0120 



2. 6800 



5.272 



.0125 



.0121 



2. 5920 



5.336 



.0125 



.0121 



2. 5920 



5.343 



.0125 



.0121 



2. 4660 



5.332 



.0125 



.0121 



2. 2410 



5.265 



.0125 



.0122 



2. 0000 



5.073 



.0125 



.0124 



1.8840 



5.037 



.0125 



.0123 



1. 4620 



4.725 



.0125 



. 0123 



1.2360 



4.622 



.0125 



.0120 



.7000 



3.739 



. 0125 



.0126 



.3260 



2.983 



.0125 



.0124 



2. 8840 



5.486 



.0150 



.0123 



2. 4540 



5. 641 



. 0150 



.0124 



1. 3820 



5. 030 



. 0150 



.0122 



11 



Chezy 

 coeffi- 

 cient. 



(C) 



7121. 

 7131. 

 714i. 

 715- . 

 716- 

 717- 

 718. 

 719. 

 720. 

 721. 

 722. 

 723- 

 724. 



725i . 

 726'. 

 727. 

 728. 

 729. 

 730. 

 731. 

 732- 

 733. 

 734. 

 735. 



736". 

 737i. 

 738'. 

 739. 

 740. 

 741. 

 742. 

 743. 

 744. 

 745. 

 746- 

 747- 

 748. 

 749- 



7501. 

 751. 

 752. 



Feet. 



0.S06 

 .800 

 .779 

 .726 

 .718 

 .659 

 .627 

 .570 

 .541 

 .487 

 .408 

 .323 

 .224 



.792 

 .791 

 .681 

 .624 

 .618 

 .595 

 .553 

 .489 

 .405 

 .327 

 .207 



.810 

 .809 

 .805 

 .742 

 .701 

 .700 

 .664 

 .611 

 .569 

 .543 

 .463 

 .412 

 .314 

 .213 



.781 

 .624 

 .421 



0.97 

 .97 

 .94 



.76 

 .69 

 .65 

 .59 

 .49 

 .39 

 .27 



.96 

 .96 

 .82 

 .75 

 .75 

 .72 

 .67 

 .59 

 .49 

 .40 

 .25 



.98 



.98 

 .97 

 .90 

 .85 

 .85 

 .80 

 .74 



Sg. ft. 



0. 5338 

 .5322 

 .5250 

 .5000 

 .4956 

 .4592 

 .4371 

 .3950 

 .3724 

 .3291 

 .2642 

 .1944 

 .1176 



.5297 

 . 5294 

 .4735 

 . 4350 

 .4307 

 . 4139 

 .3819 

 .3308 

 .2616 

 .1976 

 .1052 



.5349 

 .5346 

 .5336 

 .5083 

 .4857 

 .4852 

 .4625 

 .4257 

 .3942 

 .3740 

 .3(J36 

 .2674 

 .1872 

 .1096 



.5257 

 . 4350 

 .2749 



.93 

 .92 



.85 

 .si 

 .74 

 . (',9 

 .61 



Feet. 

 0. 2288 

 .2317 

 .2392 

 .2491 

 .2498 

 .2616 

 .2501 

 .2440 

 .2389 

 .2275 

 .2050 

 .1740 

 .1299 



.2349 

 .2353 

 .2517 

 .2499 

 .2493 

 .2468 

 .2411 

 .2280 

 .2040 

 .1756 

 .1214 



.2267 

 .2273 

 .2294 

 .2470 

 . 2511 

 .2511 

 .2517 

 .2486 

 .2438 

 .2393 

 .2213 

 .2063 

 .1704 

 .1244 



.2386 

 .2499 

 -.2091 



95.7 

 94.2 

 93.8 

 95.2 

 95.3 

 94.6 

 93.5 

 89.5 

 87.5 

 85.0 

 77.7 

 75.5 

 70.9 



93.7 

 94.3 

 92.9 

 94.6 

 93.2 

 91.6 

 87.7 

 87.1 

 84.0 

 75.3 

 63.2 



95.0 

 95.5 

 94.1 

 94.9 

 95.2 

 95.4 

 95.1 

 94.5 

 91.9 

 92.1 

 89.8 

 91.0 

 81.0 

 75.6 



91.7 

 92.1 



12-INCH TILE. 



7531 

 754.. 

 755. . 

 756.. 

 757.. 

 758. 

 759. 

 760. 

 761. 

 762.. 

 763. 

 764. 

 765. 



0.985 



0.99 



0. 7712 



0.99 



0. 2587 



0. 9125 



1.183 



0. 0005 



0.0110 



.943 



.95 



.7581 



.98 



.2836 



.8938 



1.179 



.0005 



.0117 



.889 



.90 



.7299 



.95 



.2960 



.8672 



1. 188 



. 0005 



.0119 



.845 



.85 



.7011 



.91 



.3006 



.8492 



1.211 



.0005 



.0118 



.782 



.79- 



. 6532 



.85 



.3014 



.7540 



1.154 



.0005 



.0123 



.756 



.76 



.6317 



.82 



.3001 



.6986 



1.106 



.0005 



.0127 



.691 



.70 



.5745 



.74 



.2933 



.6496 



1.131 



.0005 



.0123 



.643 



.65 



.5298 



.69 



.2854 



.6062 



1.144 



.0005 



.0120 



.580 



.59 



.4692 



.61 



.2717 



.4982 



1.062 



.0005 



.0124 



.534 



.54 



.4240 



.55 



.2594 



.4485 



1.058 



.0005 



.0120 



.511 



.52 



.4012 



.52 



. 2526 



.4083 



1.018 



.0005 



.0123 



.364 



.37 



.2570 



.33 



.1991 



.2152 



.837 



.0005 



.0123 



.275 



.28 



.1747 



.23 



.1588 



.1120 



.641 



.0005 



.0132 



104.1 

 99.0 

 97.6 

 98.8 

 94.1 

 90.3 

 93.4 

 95.8 

 91.1 

 92.9 

 90.6 

 83.9 

 72.0 



1 These tests used in deriving formulae 26 and 28. 



