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<br />14
<br />
<br />TECHNIQUES o.F WATER-RESo.URCES INVEsrIGATIo.NS
<br />
<br />Table 3.-Coefficients for pipe of circular section "owing partly full
<br />ICoefficients for (1) area, (2) wetted perimeter, (3) hydraulic radius, (4) oonveyanoo, (5) discharge for crltical-depth flow, and (6) top width]
<br />
<br /> (I) (2) (3) (') (5) I (6) (1) I (2) (3) ! (0) , (5)
<br /> - 1__-
<br />dlDI A-C.l1' P=C~ R=C,D ])0' Q=C9J)6/t. T=Cd) dID I A=cGD31 P=C,D _: ])Sfl Q=C,W
<br />K=CA- R-C.D K=C~-
<br /> . .
<br /> - i
<br /> c. c, C, C. C, C, c, ~~--=-i c, c,
<br />-
<br />0.,0.1 0., 0.013 0., 20.0.3 0.. 0066 0.,0.000.68 0. 0.0.0.6 0.,199 [ 9,51 0., 40.27 I 1. 449
<br /> 1. 590.810.. 2531,0., 2394
<br />,0.2 .0.037 ,2838 ,0.132 , 0.0.0.30.7 ,0.0.25 ,280. .52 ,4127 1. 610.8 . 2562, ' 2472 1. 50.4
<br />,0.3 ,0.0.69 ,3482 .0.197 ,0.0.0.747 ,0055 ,341 ,53 ,4227 1, 630.8 ,2.592: , 2556 1. 560.
<br />,0.4 ,0.105 ,40.27 ,0.262 ,0.0.1376 .0.0.98 ,392 .54 ,4327 I. 65091 .2621: .2630 , 1. 616
<br />,0.51 ' 0.147 ,4510 ,0.325 , 0.0.2228 ,0.153 ,436 ,55 ,4426 1. 6710i ' 26491 ' 2710 1.674
<br /> ,
<br /> , '
<br />,0.6 ,0.192 ,4949 ,0.389 , 0.0328 ,0.220. ,475 ,56 ,4526 1,6911 ,2676 ,2791 1. 733
<br />,0.7 ,0.242 ,5355 ,0.451 , 0.0457 ,0.298 ,510 ,57 ,4625 1.7113 ,270.3 ,2873 1. 792
<br />,0.8 .0.294 ,5735 ,0.513 .0.060.1 ,0.389 ,543 , ,58 ,4724 1. 7315 ,2728 .2H5."i 1. 853
<br />, 0.9 , 0.350. , 60.94 , 0.575 , 0.0.775 , 0491 , 572 ,I ' 59 ' 4822 1. 7518 ' 2753 ' 30.31 1,915
<br />,10. ,0.40.9 ,6435 ,0.635 . 0.0966 ,0.605 ,60.0. ,60. .4920. 1. 7722 ,2776 ,3115 1,977
<br />,11 .0.470. .6761 .0.695 ,0.118 ,0.731 ,626 ,61 .50.18 1. 7926 ,2799 ,3192 2,041
<br />,12 .0.534 ,70.75 .0.755 .0.142 ,0.868 .650. ,62 .5115 1. 8132 , 2821' . 3268 2,106
<br />, 13 ,0.60.0. .7377 .0.813 .0.168 .1016 ,673 ,63 .5212 1,8338 .2842 ,3346 ' 2,172
<br />,14 ,0.668 .7670. .0.871 .0.195 ,1176 ,694 ,64 ,530.8 1. 8546 .2862 ,3423 1 2,239
<br />,15 .0.739 .7954 ,0.929 .0.225 ,1347 ,714 ,65 ,5404 1. 8755 .2882 ,350.1 2, 30.7
<br />,16 .0811 .8230. .0.985 ,0.257 ,1530. ,733 ,66 ,5499 1. 8965 ,290.0. .3579 2,376
<br />,17 ,0.885 .850.0. ,10.42 .0.291 ,1724 .751 ,67 ,5594 1. 9177 ,2917 ,3658 2, 446
<br />,18 ,0.961 ,8763 ,10.97 ,0.327 ,1928 ,768 , 68, ' 5687 1. 9391 ,2933 ,3727 12, 518
<br />,19 ,1039 ,90.20. ,1152 ,0.366 ,2144 ,785 ' 691 ' 5780. 1. 960.6 ,2948 ,380.5 2,591
<br />,20. ,1118 ,9273 .120.6 ,0.40.5 ,2371 ,80.0. ,70. . 5872 1. 9823 ,2962, ,3874 2, 666
<br />,21 ,1199 ,9521 ,1259 .0446 ,260.9 ,815 ,71 ,5964 2. 0.042 ,2975 ,3953 I 2,741
<br />,22 , 1281 .9764 ,1312 ,0.491 ,2857 ,828 ,72 ,60.54 2, 0.264 ,2987 ,40.21 2,819
<br />,23 ,1365 1.0.003 ,1364 ,0.537 ,3116 ,842 ,73 ,6143 2, 0488 ,2998 ,40.90. I 2,898
<br />,24 ,1449 1. 0.239 ,1416 ,0.586 ,3386 ,854 ,74 ,6231 2, 0.714 ,30.0.8 ,4157 2,978
<br />.25 ,1535 1. 0.472 ,1466 ,0.634 ,3666 ,866 ,75 ,6319 2, 0.944 ,30.17 ,4226 13,0.61
<br />,26 .1623 1. 0.70.1 ,1516 ,0.685 ,3957 ,877 I ,76 ,640.5 2,1176 ,30.24 ,4283 ' 3, 145
<br />,27 , 1711 1. 0.928 ,1566 ,0.740. ,4259 ,888 ,77 ,6489 2,1412 ,30.31 ,434!1 3,231
<br />,28 ,180.0. 1. 1152 ,1614 ,0.792 ,4571 ,898 ' 78, , 6573 2,1652 .30.36 ,4415 3, 320.
<br />,29 .1890. 1. 1373 ,1662 ,0.848 ,4893 ,90.8 I ' 791 ' 6655 2,1895 ,3039 ,4470. 3.411
<br />,30. ,1982 1,1593 ,170.9 ,0.90.7 ,523 ,917 ,80. ,6736 2,2143 ,3042 ,4524 3. 50.5
<br />,31 ,20.74 1.1810 ,1756 ,0.968 ,557 .925 ,81 ,6815 2,2395j ,30.43 ,4578 3,60.2
<br />,32 ,2167 1. 20.25 ,180.2 ,1027 ,592 ,933 ,82 ,6893 2, 2653 ,3043 ,4630. 3,70.2
<br />,33 ,2260. 1. 2239 ,1847 .1088 ,628 .940. I ,83 ,6969 2, 29161' 30.41 ,4681 3,80.6
<br />,34 ,2355 1. 2451 ,1891 , 1155 ,666 ,947 , 84, ,70.43 2, 3186 ,30.38 ,4731 3, 914
<br />,35 ,2450. 1. 2661 ,1935 ,1220. 1 ,704 ,954 , 85i ' 7115, 2, 3462 ,30.33, ,4768 4,0.28
<br />,36 ,2546 1. 2870. ,1978 ,1283 1 ,743 ,960. ' 861' 7186' 2, 37461 ' 30.26' , 4816 4,147
<br />,37 ,2642 1. 30.78 ,20.20. ,1350. ,784 ,966 ,87 ,72541 2,40.38 ,30.18: ' 4851 4, 272
<br />,38 ,2739 1. 3284 ,20.62 ,1421 ,825 ,971 ,88 ,7320.1 2,4341 ,30.0.7, 4884 4, 40.6
<br />,39 ,2836 1. 3490. ,210.2 ,1488 ,867 ,975 , ,891 ,7384 2,46551 ,2995 ,4916 i' 4.549
<br />,40. ,2934 1. 3694 ,2142 ,1561 ,910 ,980. ! ' 90. ,7445 2,4981 ,2980. ,4935 ! 4,70
<br />, 41 , 30.321 1. 3898 ,2182 ,1631 ,955 !' ,91' ,7504 2, 5322 .2963 ,4951 4,87
<br /> ,984 "
<br />,42 ,3130. 1. 410.1 ,2220. ,170.2 1. 0.0.0. .987 I- , 92, ,7560. 2, 5681 ,2944.,4966 .5,0.6
<br />, 431, 3229 1. 430.3 .2258 ,1780. 1,0.46 .990 ;1 ,!l3, ,7612 2,60.61, ,2921' ,4!'77 .5.27
<br />,44 ,3328 1, 450.5 ,2295 ,1854 1. 0.93 ,9931' ,94 ,7662 2,64671 ,2895, ,4!'79 5,52
<br />,45 ,3428 1. 470.6' , 2331 ,1931 1.141 ,995 i ' 951 ' 770.71 2,690.6' , 2865' , 4970 5, 81
<br />1
<br />, 461' 3527 1. 490.7 ,2366 ,2002 1. 190. ,997 , 96, ' 7749, 2, 7389 ,2829' ,4963 6,18
<br />,47 ,3627 1. 5108 ,240.1 ,20.80. 1. 240. ,998 1 ' 971' 7785i 2,7934 ,2787' ,4940 6,67
<br />,48 ,3727 1. 530.8 ,2435 ,2160. 1. 291 ,999 ,98 ,7817, 2, 8578 ,2735' ,4902 7,41
<br />. 49, ,3827 1. 550.8 ,2468 ,2235 1. 343 1. 00.0. , ,99 ,7841' 2,9412 , 2666' ,4824 8,83
<br />, ,50., ,3927, 1. 570.8 ,250.0. ,2317 1. 396 1. 000 I 1. 0.0.; . 78541 3, 1416 ,250.0, ,4633 -------
<br />: !
<br />
<br />I d=maximum depth of water in feet; D=diamcwr of pipe, in foot.
<br />
<br />e
<br />
<br />(6)
<br />
<br />/I'l'=CtD
<br />
<br />c,
<br />
<br />1. 0.0.0
<br />.99'J
<br />.9fJR
<br />.997
<br />.99,1}
<br />
<br />,9n
<br />. nun
<br />.987
<br />.984
<br />,980
<br />
<br />,
<br />
<br />.975
<br />,971
<br />,966
<br />,960.
<br />.954
<br />.947
<br />,940.
<br />,933
<br />.925
<br />.917
<br />
<br />,90.8
<br />,898 e
<br />,888
<br />,877 _
<br />,866
<br />
<br />.854
<br />,842
<br />,828
<br />,815
<br />,800
<br />,785
<br />,768
<br />,75]
<br />,733
<br />,714
<br />,694
<br />,6n
<br />.650
<br />,626
<br />,600
<br />
<br />.m'!,
<br />. ,~4:1
<br />. ;,IU
<br />.47;J
<br />.43fj
<br />
<br />. :lU2
<br />,341
<br />,280
<br />.Iun
<br />,00.0.
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<br />e
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