Simulation of the Entrance to the Escape of the Flood Branching from the Diyala River
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Abstract
The Diyala River is considered the third most important river in Iraq. However, in the recent period, Diyala Governorate has been subject to several floods. This study aims to simulate an efficient labyrinth weir at the flood escape entrance branching from the Diyala River to reach the best entrance through which the flood waves can pass safely. The discharge coefficient was calculated laboratory for five types of trapezoidal side labyrinth weirs with different sidewall angles. Results showed that the coefficient discharge for the trapezoidal labyrinth side weir with an angle of the sidewall is 75ᵒ and has a discharge coefficient greater than the rest of the labyrinth side weirs. The second part of this study is validating the laboratory work using the CFD technique, where the same laboratory channel was simulated with the weirs of the side trapezoidal labyrinth using the Ansys-Fluent program. The numerical study gave very close results compared with the experimental results with MSE, where the error percentage error was from 3.3% to 10%. The last part of the work is numerically simulating the trapezoidal labyrinth side weir with an angle of the sidewall of 75ᵒ at the flood escape entrance branching from the Diyala River. The results showed that the side labyrinth weir has a larger discharge capacity of 4.8% than the rest of the traditional weirs and is more effective in flood treatment.
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Aydin, M. C., and Emiroglu, M. E. 2013. Determination of capacity of labyrinth side weir by CFD. Flow Measurement and Instrumentation, 29, pp. 1–8. Doi:10.1016/j.flowmeasinst.2012.09.008
Bagherifar, M., Emdadi, A., Azimi, H., Sanahmadi, B., and Shabanlou, S., 2020. Numerical evaluation of turbulent flow in a circular conduit along a side weir. Applied Water Science, 10(1), pp. 1–9. Doi:10.1007/s13201-019-1117-3
Coşar, A., and Agaccioglu, H., 2004. Discharge Coefficient of a Triangular Side-Weir Located on a Curved Channel. Journal of Irrigation and Drainage Engineering, 130(5), pp. 410–423. Doi:10.1061/(ASCE)0733-9437(2004)130:5(410)
Emiroglu, M. E., Kaya, N., and Agaccioglu, H., 2010. Discharge Capacity of LabyrinthSide Weir Located on a Straight Channel. Journal of Irrigation and Drainage Engineering, 136(1), pp. 37–46. Doi:10.1061/(ASCE)IR.1943-4774.0000112
Ghali, H. M., and Azzubaidi, R. Z., 2021a. Flood Management of Diyala River. Journal of Engineering, 27(8), pp. 32–42.Doi:10.31026/j.eng.2021.08.03
Ghali, H. M., and Azzubaidi, R. Z., 2021b. Managing the Flood Waves from Hemrin Dam. Journal of Engineering, 27(7), pp. 42–52. Doi:10.31026/j.eng.2021.07.04
Ghaderi, A., Daneshfaraz, R., Dasineh, M., and Di Francesco, S., 2020. Energy dissipation and hydraulics of flow over trapezoidal-triangular labyrinth weirs. Water (Switzerland), 12(7). Doi:10.3390/w12071992
Haun, S., Olsen, N. R. B., and Feurich, R., 2011. Numerical modeling of flow over trapezoidal broad-crested weir. Engineering Applications of Computational Fluid Mechanics, 5(3), pp. 397–405. Doi:10.1080/19942060.2011.11015381
Jassam, W. A., and Abed, B. S., 2021. Assessing of the Morphology and Sediment Transport of Diyala River. Journal of Engineering, 27(11), pp. 47–63. Doi:10.31026/j.eng.2021.11.04
Kardan, N., Hassanzadeh, Y., and Shakooei Bonab, B., 2017. Shape Optimization of Trapezoidal Labyrinth Weirs Using Genetic Algorithm. Arabian Journal for Science and Engineering, 42(3), pp. 1219–1229. Doi:10.1007/s13369-016-2355-4
Khalili, M., and Honar, T., 2017. Discharge coefficient of semi-circular labyrinth side weir in subcritical flow. Water SA, 43(3), pp. 433–441.Doi:10.4314/wsa.v43i3.08
Karimi, M., Jalili Ghazizadeh, M., Saneie, M., and Attari, J., 2019. Flow characteristics over asymmetric triangular labyrinth side weirs. Flow Measurement and Instrumentation, 68(June), P.101574. Doi:10.1016/j.flowmeasinst.2019.101574
Mattos-Villarroel, E., Flores-Velázquez, J., Ojeda-Bustamante, W., Díaz-Delgado, C., and Salinas-Tapia, H., 2021. Influence of crest geometric on discharge coefficient efficiency of labyrinth weirs. Flow Measurement and Instrumentation, 81(March). Doi:10.1016/j.flowmeasinst.2021.102031
Saleh, O. K., Elnikhely, E. A., and Ismail, F., 2019. Minimizing the hydraulic side effects of weirs construction by using labyrinth weirs. Flow Measurement and Instrumentation, 66, pp. 1–11. Doi:10.1016/j.flowmeasinst.2019.01.016
Zachoval, Z., Knéblová, M., Roušar, L., Rumann, J., and Šulc, J., 2014. Discharge coefficient of a rectangular sharp-edged broad-crested weir. Journal of Hydrology and Hydromechanics, 62(2), pp. 145–149. Doi: 10.2478/johh-2014-0014