Sharif University of Technology Scientia Iranica 1026-3098 22 6 2015 12 01 Numerical Analysis of Flow Over Weirs and Labyrinth Side Weirs Numerical Analysis of Flow Over Weirs and Labyrinth Side Weirs 1994 2000 2016 EN M. Nabatian Dept. of Civil and Environmental Engineering, Shiraz University, Shiraz, Iran M. Amiri Dept. of Civil and Environmental Engineering, Environmental Research and Sustainable Development Center, Shiraz University, Shiraz, Iran M. R. Hashemi Dept. of Water Engineering, Shiraz University, Shiraz, Iran N. Talebbeydokhti Dept. of Civil and Environmental Engineering, Environmental Research and Sustainable Development Center, Shiraz University, Shiraz, Iran 0000-0002-9322-2416 Journal Article 2015 04 29 The study is undertaken with the aim ofdeveloping a 1-D numerical analysis of flow over side weirs ondifferential quadrature method (DQM). 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. The deviation (from experimental data) was found not exceeding 4.5%. Furthermore, the contribution from different terms of the governing equation was assessedthrough a comprehensivesensitivity analysis.  The results show that ,in order to simplify the governing equation, the channel slope and the friction slope can be eliminated. https://scientiairanica.sharif.edu/article_2016_d601a4881d0e3082b1493ac6735e581a.pdf