COMPUTATIONAL MODELING OF FLOW OVER AN OGEE SPILLWAY

摘要

This paper presents an investigation into the hydraulics of regular ogee-profile spillways. Thefree-surfaces of the fluid for several flow heads as measured in the hydraulics laboratory are used asbenchmarks. The finite element computational fluid dynamics software, ADINA, was used to predict thefree surface over an ogee spillway and thus model the flow field. Since the actual flow is turbulent the k-□flow model was used. For the cases considered in this paper, ADINA predicted reasonable free surfaceresults that are consistent with general flow characteristics over spillways. The results are also in closeagreement with measured free-surface profiles over the entire length of the spillway.