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

作者：Nabatian M^*; Amiri M; Hashemi M R; Talebbeydokhti N

来源：Scientia Iranica, 2015, 22(6): 1994-2000.

• Labyrinth side-weir
• Lateral flow
• Spatially varied flow
• Differential quadrature
• Unsteady flow

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.

• 出版日期2015