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<br />I <br />~ k <br />k" <br />I L <br /> L <br />I L ,L ,L <br /> 1 2 3 <br /> L <br /> a <br />I L <br /> c <br />L <br /> e <br />I L <br /> j <br />L <br /> s <br /> L <br />I s <br />2. <br /> 2. <br />I 2. <br /> a- <br /> 2. <br /> b <br />I 2.c <br />M <br />. m <br />M/N <br /> n <br />I nb <br /> n <br />I 0 <br />n <br /> w <br />P <br />I p ,p <br /> 1 2 <br />Pb <br />I PE <br />P., P <br /> l 0 <br /> P <br />I -w <br />P. <br /> l <br /> P <br />I p <br /> Q <br />I . <br />f Q <br />I <br /> <br />~ coefficient of the velocity relationship <br />= total backwater coefficient for subcritical flow <br />= length of control volume <br />= length of culvert <br />= lengths for sloping sill drop structure <br />= length of abutment <br />= length of a channel along the thalweg <br />, length of embankment <br />= length of hydraulic jump <br />= upstream length of a guidebank <br />, length of the roadway crest for overspill <br />= pier length <br />= mixing length <br />= longest ax is of particle <br />= intermediate axis of particle <br />= shortest a:<is of particle <br />= bridge opening ratio <br />= exponent of the velocity relationship <br />= ratio of lift to drag moments on a particle <br />= Manning's resistance coefficient <br />~ Manning's resistance coefficient of the bed <br />= Manning's resistance coefficient for steady uniform flow <br />= Manning's resistance coefficient of the walls <br />~ wetted perimeter of the flow <br />~ pressure of fluid at sections one and two <br />= wetted perimeter of the bed <br />= coefficient in the Einstein's total sediment discharge method <br />= pressure of fluid inside and outside the bend <br />= wetted perimeter of the banks <br />= percentage by weight of a size fraction of sediment <br />= coefficient of the total bed sediment discharge relationship <br />= average pressure over a cross section <br />= discharge (flow rate) <br /> <br />= rate at which heat is added to the system <br /> <br />xxxiii <br />