FORMULA OF WATER FLOW THROUGH THE FLAT SLUICE GATE IN THE OPEN CHANNEL
https://doi.org/10.26897/1997-6011-2022-3-60-64
Abstract
The purpose of the research is to analyze the influence of the flow kinematic structure on the measuring accuracy of the water flow through the flat sluice gate in the open channel. For the simulation and analysis of the flow through the sluice gate, the DisCo4 software-computer complex developed by the author was used based on the numerical solution of the system of equations (RANS) and continuity by the finite volume method in the three-dimensional formulation. It was found that installation of the sluice gate on the thin transverse wall can significantly reduce the effect of the channel bottom roughness on the water flow through the gate. The analytical formula for discharge through the flat sluice gate of the considered structure is proposed. Regardless of the channel roughness, the scatter of calculated discharges in the range of ratios of the height of the hole to the depth relative to the lower edge of the hole Hg /Н < 0.3 is no more than 3%.
About the Author
A. M. Kusher
All-Russian Research Institute for Hydraulic Engineering and Land Reclamation named after A.N. Kostyakov
Russian Federation
Russian Federation
References
1. Rajaratnam N. and Subramanya K. Flow Equation for the Sluice Gate // Journal of Irrigation and Drainage Engineering. 1967. - Vol. 93. -№ 9. - Рр. 167-186.
2. N. Rajaratnam, “Free Flow Immediately Below Sluice Gates,” Journal of the Hydraulics Division, Vol. 103, No. 4, 1977, pp. 345-351.
3. A. Roth, W.H. Hager, “Underflow of Standard Sluice Gate, Experiments in Fluids, Vol. 27, No. 4, 1999, pp. 339-350. DOI 10.1007/s003480050358
4. A.H.D. Cheng J.A. Liggett and P.L.-F. Liu, “Boundary Calculations of Sluice and Spillway Flows,” Journal of the Hydraulics Division, Vol. 107, No. 10, pp. 1163-1178.
5. G. Belaud, L. Cassan J.-P. Baume. Calculation of Contraction Coefficient under Sluice Gates and Application to Discharge Measurement. Journal of Hydraulic Engineering, vol. 135, 2009, pp. 1086-1091. ISSN0733-9429
6. Dae-Geun Kim. Numerical Analysis of Free Flow Past a Sluice Gate. KSCE Journal of Civil Engineering, Vol. 11, No. 2, March 2007, pp. 127-132.
7. Kusher A.M. Analiz faktorov, vlijajushchih na propusknuju sposobnost shchitovyh zatvorov v otkry-tom rusle. Materialy mezhdunarodnoy nauchno-prak-ticheskoy konferentsii «Sovremennie problemy razvitiya melioratsii i puti ih resheniya», t. 2, VNIIGiM, M., 2020, s. 307-315.
8. Kusher A.M. Primeneniye chislennogo modeliro-vaniya v raschete gidrometricheskih sooruzheniy v ot-krytyh ruslach. Vestnik MGSU, tom 13, vypusk 8, 2018, s. 1008-1015.
9. Agroskin I.I., Dmitriev G.T., Pikalov F.I. Gidravlika. Gosenergoizdat, izd. 3, 1954, 484 s.
10. Garbrecht G. Abflussberechnung fur Flusse und Kanale, Die Wasserwirtschaft, 51. Jahrgang, 1961, S. 40-45 und S. 72-77. (Deutsch)
Review
For citations:
Kusher A.M. FORMULA OF WATER FLOW THROUGH THE FLAT SLUICE GATE IN THE OPEN CHANNEL. Prirodoobustrojstvo. 2022;(3):60-64. (In Russ.) https://doi.org/10.26897/1997-6011-2022-3-60-64
Views:
180
Email this article 