Jordan Journal of Civil Engineering

Paper Detail

Numerical Modeling of Flow Pattern in Spillway Approach Channel

Volume 12, No. 1, 2018
Received: 2017/12/03, Accepted:

Authors:

Abbas Parsaie; Amir Moradinejad; Amir Hamzeh Haghiabi;

Abstract:

Analysis of behavior and hydraulic characteristics of flow over the dam spillway is a complicated task that takes lots of money and time in water engineering project planning. To model these hydraulic characteristics, several methods, such as physical and numerical methods, can be used. Nowadays, by utilizing new methods in computational fluid dynamics (CFD) and by the development of fast computers, numerical methods become accessible for use in the analysis of such sophisticated flows. CFD softwares have the capability to analyze two-and three- dimensional flow fields. In this paper, the flow pattern at the guide wall of Kamal-Saleh dam was modeled by Flow 3D. The results show that the current geometry of the left wall causes instability in the flow pattern and makes the secondary and vortex flows at the beginning approach channel. This shape of guide wall reduces the performance of weir to remove the pick flood discharge.

Keywords:

Approach channel, Kamal-Saleh dam, Guide wall, Flow pattern, Numerical modeling, Flow 3D software