Communications on Advanced Computational Science with Applications

Volume 2014 (2014), Article ID cacsa-00030, 12 Pages

doi: 10.5899/2014/cacsa-00030


Research Article


An Investigation of Energy Dissipation in Various Types of Stepped Spillways including Inclined Steps and Steps with End Sills by Numerical Model


Iman Naderi Rad *


Department of Civil Engineering, Malayer Branch, Islamic Azad University, Malayer, Iran.


* Corresponding author. Email address: i.naderirad@gmail.com. Tel: +989183136435


Received: 05 July 2014; Accepted: 02 August 2014


Copyright © 2014 Iman Naderi Rad. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of this research is to evaluate energy dissipation in various types of stepped‌ spillways; inclined steps and steps with end sills by taking into accounts parameters such as; characteristic height of step(m), flow discharge per unit width (q) and overall slope of steps stepped spillway $(\theta)$ by numerical method. In this research the governing equations are solved by finite volume discretization method and the standard K-\varepsilon model is used for estimating the turbulence flow. In this research the structured grid is used to accommodated the well-defined boundaries and the volume of fluid (VOF) method is introduced to solve the complex free-surface problem. Results of the numerical method compare well with the experimental results of other researchers.


Keywords: Stepped Spillways; Inclined Steps; Steps with End Sills; Volume of Fluid (VOF); Standard $K-\varepsilon$ Model.

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