Numerical Solution of the Discharge Coefficient of Trapezoidal Arced Labyrinth Weirs with Different Middle Cycles Using Flow 3D Software

نوع مقاله : مقاله کامل (پژوهشی)

نویسندگان

1 دانشجوی دکتری سازه های آبی - دانشگاه آزاد اسلامی واحد اهواز

2 عضو هیات علمی گروه سازه های آبی دانشگاه آزاد اسلامی واحد اهواز

3 مدیر گروه سازه های آبی/دانشکده کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی، اهواز،ایران

4 عضو هیات علمی گروه هندسی آب واحد اهواز دانشگاه آزاد اسلامی

چکیده

In the present study, a three-dimensional hydraulic flow simulation was carried out on Labyrinth weirs using Flow3D software and the modeling results were compared with the experimental results to Investigate the discharge coefficient of trapezoidal arced labyrinth weirs. Moreover, these models were tested under laboratory conditions in a rectangular flume with a length of 12m, a width of 0.6m, and a height of 0.6m in clear water conditions. The results indicated that the numerical solution data showed adequate conformity with the experimental model data. In general, the discharge coefficients in the results of the numerical solution were lower than the experimental model. The difference between the discharge coefficients in the numerical solution and the experimental model increased with an increase in the arc radius. As a result, with the R/w1=5 and R/w1=15 radius ratios, the discharge coefficients of the numerical solution were approximately 1.2% and 18.9% lower than the experimental model, respectively.

کلیدواژه‌ها

موضوعات

مراجع

Ghaderi, A., Daneshfaraz, R., Dasineh, M. & Di Francesco, S. (2020). Energy Dissipation and Hydraulics of Flow over Trapezoidal–Triangular Labyrinth Weirs. Water, 12(7), 1992, https://doi.org/10.3390/w12071992.
Ghaderi, A., Daneshfaraz, R., Abbasi, S. & Abraham, J. (2020). Numerical analysis of the hydraulic characteristics of modified labyrinth weirs. International Journal of Energy and Water Resources, 4, 425–436.
Azimi, A. & Seyed Hakim, S. (2018). Hydraulics of flow over rectangular labyrinth weirs. Irrig Sci, 37(12), 183-193.
Bijankhan, M. & Ferro, V. (2017). Dimensional analysis and stage-discharge relationship for weirs: A review.  J. Agri Eng., 48(1), 1–11.
Bijankhan, M. & Kouchakzadeh, S. (2017). Unified discharge coefficient formula for free and submerged triangular labyrinth weirs. Flow Meas Instrum, 57, 46-56.
Christensen, N.A. (2012). Flow Characteristics of Arced Labyrinth Weirs. MSc thesis, Utah State University, Logan, Utah.
Crookston, B.M. & Tullis, B.P. (2013). Labyrinth Weirs: Nappe Interference and Local Submergence. J Irrig Drain Eng., 138(8), 757–765.
Crookston, B.M. & Tullis, B.P. (2012a). Arced labyrinth weirs. J Hydraul Eng, 138(6), 555-562.
Crookston, B.M. & Tullis, B.P. (2012b). Discharge efficiency of reservoir-application-specific labyrinth weirs. J Irrig Drain Eng, 138(6), 773–776.
Crookston, B.M. (2010) Labyrinth weirs. PhD thesis, Utah State University, Logan, Utah.
Emami, S., Arvanaghi, H. & Parsa, J. (2018). Numerical Investigation of Geometric Parameters Effect of the Labyrinth Weir on the Discharge Coefficient. J Rehabil Civ Eng, 6(1), 01-09.
Falvey, H.T. (2003). Hydraulic Design of Labyrinth Weirs. USA, ASCE press.
Ghare, A.D., Mhaisalkar, V.A. & Porey, P.D. (2008). An Approach to Optimal Design of Trapezoidal Labyrinth Weirs. World. Appl Sci J, 3(6), 934-938.
Gharibvand, R., Heidarnejad, M., Kashkoli, H.A., Hasounizadeh, H. & Kamanbedast, A.A. (2018). Numerical analysis of flow hydraulic in trapezoidal labyrinths and piano key weirs. Flow Meas Instrum, 64, 64-70.
Ghodsian, D., Amanian, N. & Marashi, S.A. (2001). Discharge Coefficient of Semicircular Labyrinth Weirs. Amirkabir J Civil Eng Tehran, 13, 76-83. (In Persian)
Lux, F. & Hinchliff, D.L. (1985). Design and construction of labyrinth spillways. In: Proceedings of 15th ICOLD Congress, Q59(R15), 249-274; Lausanne, Switzerland.
Monjezi, R., Heidarnejad, M., Masjedi, A.R., Purmohammadi, M.H. & Kamanbedas, A.A. (2018). Laboratory Investigation of the Discharge Coefficient of Flow in Arced Labyrinth Weirs with Triangular Plans. Flow. Meas. Instrum, 64, 64-70.
Neveen, Y.S. & Fattouh Ehab, M. (2017). Hydraulic characteristics of flow over weirs with circular openings. Ain Shams Eng J., 8, 515–522.
Norouzi, R., Daneshfaraz, R. & Ghaderi, A. (2019). Investigation of discharge coefficient of trapezoidal labyrinth weirs using artificial neural networks and support vector machines. Journal of Applied Water Science, 148(9), 1–10.
Sangsefidi, Y. & Ghodsian, M. (2019). Investigation of Effects of Entrance Channel Walls on the Hydraulic Performance of Arced Labyrinth Weirs. Modares Civil Eng J., 19(1), 181-193. (In Persian)
Tullis, B.P. (2018). Size-Scale Effects of Labyrinth Weir Hydraulics. In: Proceedings of 7th IAHR International Symposium on Hydraulic Structures, 15–18.
 
 

فایل ها

سابقه مقاله

  • تاریخ دریافت: 05 اسفند 1401
  • تاریخ بازنگری: 24 فروردین 1402
  • تاریخ پذیرش: 29 اردیبهشت 1402

هم رسانی

ارجاع به این مقاله

آمار