Author(s)

P.C. Yannopoulos & A.C. Demetracopoulos

Abstract

The steady state, depth-averaged hydrodynamic equations are used for the computation of transverse profiles of the longitudinal velocity in prismatic and natural channels. Turbulence closure of the comlete set of equations is accomplished (a) via a simle model in which vt is assumed proportional to the shear velocity and the local depth, and (b) the depth-averaged k-e model of Rastogi & Rodi. Subsequently, the governing equations are simplified to their purely parabolic form and the transverse distance is replaced by the cumulative discharge as the second independent variable. Turbulence closure in the latter set of equations is accomplished with model (a). All models are solved numerically via Patankar's scheme and the results are comp

Keywords