Alternative formulation of velocity profile in open channel flow

Classical formulations for the mechanics of turbulent open channel flow describe the velocity distribution as a logarithmic function increasing from a zero velocity at the bottom of the channel and reaching a maximum at the water surface.; This study enhances the theoretical basis of the velocity profile derivation and looks to produce a more applicable velocity profile. By making a small change to the assumptions behind the velocity profile, a modified profile is produced which has zero velocity gradient at the surface and produces a typical linear shear stress profile. This profile also produces a distribution of eddy viscosity which shows a smaller influence of the free surface than the solid boundary. This profile is compared with measured velocity data sets and the fits of the logarithmic profile and the Coles wake function. (Abstract shortened by UMI.)...