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158 <br /> <br />v-- <br />LL <br />d <br />I o <br />v ~ <br />I <br /> <br />CH?,PTER ~ <br />V <br />cJ <br />0 <br />S- 2 ~f S+Z r,f <br />4 <br />Hz <br />H3 2 <br />H <br />_~.. <br />= S- ~ ~t <br />2 ~ I <br />0 <br />N (A <br />d 5+~01 <br />I + 00 I 2 3 4 <br />SI OID `~ ~ SZ+~Zpt St ~ ~f <br />O 10 20 30 an Sn cn. <br />$t~~t <br />Rgu rc 3 I L Ecamplr of routin•_ using PU LS mrlhoJ. Thr chara. trnsl ii cun~es are <br />Irum E.~ample Prublrm 3. 3. <br />(=1 Suter for S,+ ~,~ ,t b}aJJin_lli +I,I~I;'to Sl~u,' .t. <br />131 Lntrt Ihr storage [harm tensor cun~rs al the nru s:Jur of S, + ~~ <br />_ ~t anJ <br />I3) Urlrnumc iht v~lua o(O_, from Iht suer Jisiharge iun~r iorrrsponJ mg In <br />H •. <br />15) Rrprat the procrJ urc by setting the new II, OI. St anJ lil rq ual fo the <br />pn•slous I,, O_. S,~ and H, anJ using a new h. Cunnnue until [he rauune <br />is iamplrtc. _ - _ <br />yC~¢. <br />~• <br />. .:~:;. ~ H1'DR.~ULICS OF STRLICTURES <br />Esampk Problem 3A <br />An inflow hpdrograph is shown in the Grst two columns of the (ollowin~• tab <br />Route the hcJ rocraph through [he vru. mrr of Exantple Problem 4.3. <br />Sulu lion: <br /> The solution is shown in [ahular ionn in ihr followine tablC alone w'I(It the <br />' <br />now h }'J rocnph. <br /> <br />Time I (II +I,)Gt/_' lil SI -OI pt/J S,_ +O, 9t/' H, O <br />(ntm) c(S aC-(t (I aDfl ai-1[ (I i(! <br />0 0 <br />5 30 .13 0 0.50 0.63 0.09 3 <br />10 IS'_ .77 0.09 O.G_' 1.39 O.a_ 3S <br />IS 3i9 1.95 O.d_ L_0 3.15 1.05 55 <br />'_0 535 3.?' I.OS ?35 557 L60 107 <br />'S 635 4.14 1.60 4.50 5.64 '_.1'_ 1_. <br />30 677 4.59 _'.1_ 7.:0 11.79 '_.55 135 <br />35 651 3.61 '.55 10.05 14.66 '.90 14-1 <br />40 59'_ 4.3 _' '.90 13.'_0 17.5'_ 3.17 151 <br />35 SID 3.53 3.17 IS.b0 19.43 ~ 3.35 155 <br />i0 3'. 3.'_3 3.35 17.60 '_0.64 3.35 ISS <br />55 333 _.66 3A5 ISSO '1.16 3S0 I>9 <br />60 .-0 '_.13 3.50 19..0 _'1.33 3.i0 15q <br />G5 _07 1.66 3.50 19.10 :1.16 3.SD 159 <br />70 150 I.'3 3.50 19'0 '0.30 3A' IS? <br />-~ I10 .90 3.4] 16'0 19.10 x.31 L3 <br />SO SO .6G 3.31 17:0 ~ 18.16 3.__ I: _ <br />S5 50 .35 3.~= 16.00 16.35 3.05 135 <br />Thr ialrula ltJ outllow h}Jrograph h plourJ along with the in llou~ hcJ rnpraph i <br />Ficurr 3.1.. <br />Cherarie ristiic of Hyd rocraphs <br />The relationship of slonce [o the rrlauce mllow anJ eutt)ow hyJ ro.raph <br />.hewn in fr. urc 3.13. It ran br .frown that the peak di>eharge of [hr outflow hcJ r. <br />Graph rorrrspunds to [hr point u(inn•rsri fiun o(tltr two h}Jrographs. The eontinml <br />alw then im br written as' <br />a5 =1.0 N.I: <br />Fur the thou when outflow Is nia.v invent. the stonge~will also be masimmn. Wr .a <br />IinJ the point at which S is a nmximunt h}' setting ~ equal to zero. Therefore, th <br />ma.~inmm storage and outOuw rate wpl occur when inflow 1 ry oafs outflow O. This,e <br />ruune. cortrsponJs to the pom[s u( in0.•rsrc [ion. The storage volume require) in [h <br />msrrvou is the area betwroen ihr uttlow and outflow hydroeraphs prior to [he pea <br />outflow and is also t7te area between the two hydrogaphs alter the peak outllorr' a <br />