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<br />c~lculate La by diviqinq the h~ad. Yo' hy bott0m <,lop~, <br />~i~~ance represents th~ lenQth of ~he r~servoir" <br /> <br /><; <br />...,. <br /> <br />This <br /> <br />J-~. C~lculatinq th~ ~~pr~sentative rri~matic Cross ~ertio~ <br />By idealizin" the shao~ of the resprvoir as a00roxinatin~ that of a <br /> <br />pyramid, the volume may tie calculateri voitl1 tile follo,"in~ ~'llJation. <br /> <br />- <br />'!nl = (1 n) . " . I <br /> <br />(I-l ) <br /> <br />A = r.ro~s sectional ~rea at dam for depth Y <br /> <br />L = ~eservoir len'1th for d""t1l Y at the rla~ <br /> <br />It is necessary to ex~ress cross ~ectional area 1n term~ of th~ <br /> <br />coefficient~ utilizF''' in thp ~ain hody of this report. <:tartin" ,.'ith <br />"lju,'tion (5), f'a'l~ 1, anr! inte'1ratino lpads t" the "0110"'1no <br /> <br />1'\ = <br /> <br />- <br />r -"1+1 <br />" . V. . <br />I:f.iT <br /> <br />(I-2) <br /> <br />Since the L in equation I-l may also he exnr~s~e1 i~ terms of Y. the <br /> <br />volume equation f"1~Y h" writt/On 3S <br /> <br />Vol = '3 . (1;1) , c:; <br />n <br /> <br />-'.1+? <br />. Y . <br /> <br />(1-3) <br /> <br />This equation has one inderpnrient t~rm. Y, ~nd one d~pendent term, <br />The slope p~ram"ter. S . is knmm, anri th0 t\1e ('opffici~nts C and <br />') <br /> <br />Vol. <br /> <br />'.1 and the IJnkno~ms. fly curv~ "ittin'1 thr'1l1'lh ? pnints, tVIO equations may <br /> <br />he developed ~<, follows. <br /> <br />> <br /> <br /> <br />. <br /> <br />. <br />" <br />'" <br />OJ <br />:T' <br /> <br />1 <br /> <br />\''1111"1'' <br /> <br />63 <br />