Numerical analysis of the flow over weirs and labyrinth side-weirs

The study is undertaken on Differential Quadrature Method (DQM) with the aim of developing a 1-D numerical analysis of the flow over side-weirs. The numerical results were compared with relevant experimental data for both the simple and labyrinth side-weirs. The results showed that the numerical methodology can effectively predict the discharge and flow profile associated with labyrinth side-weirs. Deviation (from experimental data) was found not exceeding 4.5%. Furthermore, the contributions of different terms of the governing equation were assessed through a comprehensive sensitivity analysis. The results show that in order to simplify the governing equation, the channel slope and the friction slope can be eliminated. (C) 2015 Sharif University of Technology. All rights reserved.