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OR�FICE DESIGN: �= Ca 2gh <br />where � = Discharge, cfs <br />C = Coefficie�t of discharge <br />a= area of orifice, squGre feet <br />g= acceleration of gravity, ft. per sec.z <br />h=. head on the center of orifice, ft. <br />for C = 0.62 <br />� _. 2.SB includes offsite <br />g = 32.2 • <br />h �= 8.96 <br />� <br />a - - _ <br />l. 2gh <br />a - 0.173 sq. ft. <br />a = 24.95 sq. in, <br />since a = � r2 <br />2.58 <br />(0.621� (2)(32.2)(8.96) <br />.. Aadius = r = \I � = 2,82 ir,ches <br />�� <br />• � = 5.64 ir.ches <br />- 4 - <br />L� <br />-� <br />_.� <br />J <br />