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<br />rable III-l.-Uniform flow in trapezoidal channel, by Manning', formula. From Ref....... 111.3. <br /> <br />d/bl <br /> <br />Z'O <br /> <br />.D2 <br />.03 <br />.04 <br /> <br />.002.3 <br />.lI04.4 <br />.0066. <br />.00947 <br />.0127 <br />.0162 <br />.ll2OO <br />.D24O <br />.ll283 <br />.0329 <br />.0376 <br />.0425 <br />.0476 <br />.0528 <br />.0562 <br />.0638 <br />Jl695 <br />.0753 <br />.oe.3 <br />.0873 <br />.0935 <br />.0997 <br />.106 <br /> <br />z= 114 z= 1/2 <br /> <br />.00215 <br />.00419 <br />.00670 <br /> <br />.ClOlI64 <br />.0'30 <br />.0'66 <br />.D206 <br />.0249 <br />.02114 <br />.0342 <br />.0393 <br />.0446 <br />.0501 <br />.0559 <br />.0619 <br />.ofl8O <br />.0744 <br />.0809 <br /> <br />.0875 <br />.0944 <br />.101 <br />.'09 <br />.116 <br /> <br />.124 <br />.131 <br />.'39 <br />.147 <br />.166 <br />.163 <br />.172 <br />.180 <br />.199 <br />.198 <br />.207 <br />.2'6 <br />.:125 <br />.234 <br />.244 <br />.254 <br />.:263 <br />.279 <br />.282 <br />.282 <br /> <br />.ClO216 <br />.lI0423 <br />.00679 <br /> <br />.00990 <br />.0.32 <br />.0.70 <br />.0211 <br />.0256 <br />.0305 <br />.0354 <br />.0408 <br />.0464 <br />.0524 <br />.0585 <br />.0650 <br />.0117 <br />.07.96 <br />.0e'57 <br /> <br />.0932 <br />..0. <br />..09 <br />.117 <br />..25 <br /> <br />.133 <br />..42 <br />.151 <br />..60 <br />.110 <br /> <br />.179 <br />.199 <br />.199 <br />.209 <br />.2'9 <br /> <br />.230 <br />.241 <br />.251 <br />.:263 <br />.274 <br /> <br />.286 <br />.297 <br />.3'0 <br />.321 <br />.334 <br /> <br />v..... of Qn <br />b8l3 S 1/2 <br /> <br />.. 3/4 <br /> <br />.00217 <br />.lI0428 <br />.l106lI5 <br />.0099' <br />.0130& <br />.0173 <br />.02.5 <br />.0262 <br /> <br />.0311 <br />.0364 <br />.0420 <br />.0480 <br />.0542 <br />.0608 <br />.0676 <br />.0749 <br />.oen <br />.ll9OO <br />.0979 <br />.106 <br />.115 <br />.124 <br />..33 <br /> <br />.142 <br />.152 <br />.'62 <br />.172 <br />.'82 <br />.'93 <br />.204 <br />.2'5 <br />.227 <br />.238 <br />.251 <br />.283 <br />.275 <br />.289 <br />.301 <br /> <br />.314 <br />.328 <br />.342 <br />.35l; <br />.371 <br /> <br />z= I <br /> <br />.00218 <br />.00428 <br />.00690 <br />.0100 <br />.0136 <br />.0176 <br />.02'9 <br />.0267 <br />.03.8 <br />.0373 <br />.0431 <br />.0493 <br />.0568 <br /> <br />.ll628 <br />.0699 <br />.0775 <br />.0854 <br />.0936 <br /> <br />.102 <br />.111 <br />.'20 <br />.130 <br />.'39 <br /> <br />.150 <br />.160 <br />.111 <br />.'82 <br />..93 <br /> <br />.205 <br />.217 <br />.230 <br />.243 <br />.256 <br /> <br />.270 <br />.283 <br />.287 <br />.311 <br />.328 <br /> <br />.341 <br />.357 <br />.373 <br />.399 <br />A05 <br /> <br />~'_.....m <br />.. ..- <br />-...- ~ <br />"0 --.~- <br />I I <br />Z f+-b-l Z <br /> <br />z = 1-1/4 z == 1-1/2 z == t-3/4 z:= 2 <br /> <br />.002'9 <br />.lI0431 <br />.00686 <br /> <br />.010' <br />.0137 <br />.0177 <br />.0222 <br />.0271 <br /> <br />.0324 <br />.0380 <br />.0441 <br />.0505 <br />.0573 <br />.0645 <br />.0720 <br />.0800 <br />.0883 <br />.0970 <br />.106 <br />.115 <br />.125 <br />.135 <br />.146 <br /> <br />.157 <br />.168 <br />.180 <br />.192 <br />.204 <br /> <br />.211 <br />.230 <br />.243 <br />.257 <br />.272 <br />.287 <br />.302 <br />.317 <br />.333 <br />.349 <br /> <br />.366 <br />.383 <br />.401 <br />.4.8 <br />.437 <br /> <br />.00220 <br />.00433 <br />.00700 <br /> <br />.0'02 <br />.0'38 <br />.0180 <br />.0225 <br />.0275 <br /> <br />.0329 <br />.0387 <br />.0450 <br />.0516 <br />.0587 <br />.0662 <br />.0740 <br />.0823 <br />.0910 <br />.100 <br /> <br />.110 <br />.120 <br />.'30 <br />.141 <br />.152 <br /> <br />.163 <br />.115 <br />.'88 <br />.201 <br />.214 <br /> <br />.227 <br />.242 <br />.256 <br />.27' <br />.287 <br /> <br />.303 <br />.319 <br />.336 <br />.354 <br />.371 <br /> <br />.389 <br />.408 <br />.427 <br />.447 <br />.4&7 <br /> <br />.00220 <br />.00434 <br />.00704 <br />.0103 <br />.0140 <br />.0182 <br />.ona <br />.0279 <br /> <br />.0334 <br />.0394 <br />.0458 <br />.0527 <br />.0599 <br /> <br />.0677 <br />.0759 <br />.0845 <br />.0936 <br />.103 <br /> <br />.113 <br />.123 <br />.134 <br />.146 <br />.157 <br /> <br />.170 <br />.182 <br />.195 <br />.209 <br />.223 <br />.238 <br />.253 <br />.269 <br />.285 <br />.301 <br /> <br />.319 <br />.336 <br />.354 <br />.373 <br />.392 <br /> <br />.412 <br />.432 <br />.453 <br />.474 <br />.496 <br /> <br />.00221 <br />.ClO437 <br />.00107 <br /> <br />.0103 <br />.0141 <br />.0183 <br />.023\ <br />.0282 <br /> <br />.0339 <br />.0400 <br />.0466 <br />.0537 <br />.0612 <br /> <br />.0692 <br />.0176 <br />.0867 <br />.0961 <br />.106 <br /> <br />.116 <br />.127 <br />.'39 <br />.151 <br />.163 <br /> <br />.116 <br />.199 <br />.203 <br />.217 <br />.232 <br />.248 <br />.264 <br />.28' <br />.298 <br />.315 <br /> <br />.334 <br />.353 <br />.372 <br />.392 <br />.412 <br /> <br />.433 <br />.455 <br />.478 <br />.501 <br />.524 <br /> <br />z=3 <br /> <br />.00223 <br />.00443 <br />.00722 <br /> <br />.0106 <br />.0145 <br />.Q190 <br />.0240 <br />.0296 <br />.0358 <br />,0424 <br />.0497 <br />,0575 <br />.0659 <br /> <br />.0749 <br />.0645, <br />.0947 <br />.105 <br />.117 <br /> <br />.128 <br />.142 <br />.155 <br />.169 <br />.184 <br /> <br />.199 <br />.215 <br />.232 <br />.249 <br />.267 <br /> <br />.286 <br />.306 <br />.327 <br />.348 <br />.369 <br /> <br />.392 <br />.416 <br />.440 <br />.465 <br />.491 <br /> <br />.518 <br />.545 <br />.574 <br />.604 <br />.634 <br /> <br />1For d/b....... O.cM~ aM of the allUmPtiort R - d i, more convenient and more accurate than interpolation in the tabte. <br /> <br />.05 <br />.06 <br />.07 <br />.08 <br />.09 <br /> <br />.'0 <br />.11 <br />.12 <br />.13 <br />.14 <br /> <br />.15 <br />..6 <br />.17 <br />.18 <br />.19 <br /> <br />.20 <br />.2' <br />.22 <br />.23 <br />.24 <br /> <br />.25 <br />.26 <br />.27 <br />.28 <br />.28 <br /> <br />.113 <br />.119 <br />.128 <br />.133 <br />.138 <br />.146 <br />.153 <br />.160 <br />.167 <br />.174 <br /> <br />.30 <br />.3' <br />.32 <br />.33 <br />.34 <br />.35 <br />.36 <br />.37 <br />.38 <br />.38 <br />.40 <br />.4' <br />.42 <br />A3 <br />.44 <br /> <br />.18' <br />.180 <br />.198 <br />.203 <br />.2.0 <br /> <br />.2'8 <br />.n6 <br />.233 <br />.24. <br />.249 <br /> <br />1II-16 <br />