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<br />, <br />, <br />-----1, <br /> <br />.1 <br />----" <br /> <br />~_.,_.. <br />., <br /> <br />2 <br />H2 <br /> <br />" <br />" <br />" <br /> <br />.-:- <br />V22 <br />2g <br />T <br />f2 <br />y <br /> <br />WS <br /> <br />y <br />WATER SURFACE <br /> <br />HI <br />WSI <br /> <br /> <br />v2 <br />I <br />2g <br /> <br /> <br />... FLOW <br /> <br />~ <br />T <br /> <br /> <br />DATUM <br /> <br />, <br />" <br /> <br />, <br />~, <br /> <br />HL . Total change in energy (loss) between sections 1 and 2 <br />L ~ Reach length <br />V = Velocity of flow <br />W ~ Weight of fluid <br />Ply . Depth of flow <br />Yo ~ Height of channel bottOM above a datum <br />g ~ Acceleration of gravity <br />1 and 2 = Downstream cross section and upstream cross section. <br />respectively <br /> <br />Fig. 2.01. Terms in the Bernoulli equation <br /> <br />2.07 <br />