Simulation of Flow over Ogee and Stepped Spillways and Comparison of Finite Volume and Finite Element Methods

摘要

In this study, a comparison of two discretization methods in the numerical modeling of the free surface flow over stepped and ogee spillways has been presented. FLUENT has been used for the numerical solution via Finite Volume Method (FVM), and for the Finite Element Method (FEM) ADINA has been used in literature. These two methods have been compared with experimental results of free surface flow over spillways. It is worth mentioning that k-ε model has been used for modeling the turbulence of flow. According to study results, an acceptable match has been observed between the two methods and experimental results. Nevertheless FVM has presented more acceptable results in some regions compared to FEM.