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<br />FLOW DEPTHS <br /> <br />NO~MAL :DEPTH I dn <br /> <br />De.pth. o..t which. uni~orlT\ flow will Occ.ur <br />in Q'" open c.ho..nneJ. <br /> <br />No,..rn...1 depth rna.~ be. de..te.rlTlil'\e.c1 b~ . "",,;f-':"'3 <br />the. Mo.n"';"'j .,.",...t.:o", ~o,.. d.schc.""3e I <br /> <br />Q = '.48<0 A Rl/z S "& <br />n 0 <br />Qnd c",bsf-;t... f-,'I'tj for A a..,d R expre.ss 10l'\S <br />involv;n~ d Q.~ othe.r ne.cesaQ."'~ di....e.ns'ol"l$ ot <br />the.. c.h...l'tne.1 el'o,U - S~c.tion . <br /> <br />CRJ:TJ:CAL <br />Peptt. <br /> <br />DePTH cle. <br />I <br />fo... wh,'ch. the. <br /> <br />spe.eific. ene.r3~ is ~ <br /> <br />rniniYT'lt.4..... . <br /> <br />The cri+,C:QI <br />whe..n <br /> <br />de.pth oc.c.&lrs in Q. c.ha.nne./ <br />QZ AS <br />- :- <br />~ T <br />whe....e.. T is the. SllrtClC.e. ",id ih. Of"\. 0.. m;Jd <br />&'ope. ( d n ~ de. ) of low is Sllbc....i+.c...! wh i1e. on. <br />a. s+e.e.p slope. (dn < de.) -f,ow is sllpe...e.rjf,e.../. <br /> <br />, <br />