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Information Journal Paper

Title

Simulation of Subcritical Flow Distribution and Water Surface Fluctuations in Four-branch Open Channel Junction with FLOW 3D

Pages

  1018-1031

Abstract

 In this study, flow characteristics in 90 degree four-branch open channel junction with two inlets and two outlets simulated using FLOW 3D. Effect of parameters such as ratio of lateral to main inlet discharge, height of weirs on ratio of main outlet discharge to inlet discharge and water surface profile in junction wereinvestigated and were compared with experimental results. Compression of experimental and numerical results showed good agreement, in simulation outlet discharge, so that RMSE and NRMSE in main outlet channel obtained 0. 00047 m3/s and %3. 357, in lateral outlet channel obtained 0. 00488 m3/s and %4. 834, respectively. For a constant discharge ratio, a decrease in height of outlet weirs, led to higher Froude number. Also comparison of experimental and numerical results for water surface profile showed good agreement, Too. In a constant height of weirs, when flow approaching the junction water surface profile decreased, and as crossing the junction, water surface profile showed increasing trendency, so that RMSE and NRMSE for water surface profile in main channel wereobtained 0. 036884 m and %15. 75 and in lateral channel obtained 0. 04891 m and 1. 996%, respectively. An increase in inlet discharge ratio led to morewater surface fluctuation in junction whereas height of weir decreased Water surface fluctuations.

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    APA: Copy

    TALEBI, Z., AZHDARY, KH., & HOSSEINI, S.H.. (2020). Simulation of Subcritical Flow Distribution and Water Surface Fluctuations in Four-branch Open Channel Junction with FLOW 3D. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 13(3 ), 1018-1031. SID. https://sid.ir/paper/378460/en

    Vancouver: Copy

    TALEBI Z., AZHDARY KH., HOSSEINI S.H.. Simulation of Subcritical Flow Distribution and Water Surface Fluctuations in Four-branch Open Channel Junction with FLOW 3D. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2020;13(3 ):1018-1031. Available from: https://sid.ir/paper/378460/en

    IEEE: Copy

    Z. TALEBI, KH. AZHDARY, and S.H. HOSSEINI, “Simulation of Subcritical Flow Distribution and Water Surface Fluctuations in Four-branch Open Channel Junction with FLOW 3D,” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 13, no. 3 , pp. 1018–1031, 2020, [Online]. Available: https://sid.ir/paper/378460/en

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