Experimental Study on Hydraulic Characteristics of Trapezoidal Control Gate with Upstream Water Diversion Outlets in Irrigation Area

LI Lin; LIU Yan; WANG Yan-wen; DAI Wen-hong

doi:10.11988/ckyyb.20240028

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Journal of Changjiang River Scientific Research Institute ›› 2025, Vol. 42 ›› Issue (4) : 112-119. DOI: 10.11988/ckyyb.20240028

Hydraulics

Experimental Study on Hydraulic Characteristics of Trapezoidal Control Gate with Upstream Water Diversion Outlets in Irrigation Area

LI Lin ¹^,² ,
LIU Yan ¹^,² ,
WANG Yan-wen ³ ,
DAI Wen-hong ¹^,⁴

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Abstract

To support precise measurement and control of water volume in irrigation area, this study investigated the influence of diversion outlet on the flow pattern in front of control gate, as well as the variation laws of flow coefficient and head loss of trapezoidal control gate under different slopes and water diversion angles. We observed the flow pattern at diversion outlet and analyzed the causes, and further established the flow formula for trapezoidal control gate by using dimensional analysis method and calculated the head-losses based on 495 groups of discharge tests under different water diversion conditions. The discharge tests involved different gate openings and water heads with three slopes (m=1.5, 1.75, and 2) and five water diversion angles (θ=30°, 45°, 60°, 75°, and 90°). Results revealed that a backwater area was formed in front of the control gate. The coefficient of determination of the flow formula was R²=0.934, and the average relative error of the flow was 2.83%. Relative head loss decreased as the relative opening of the control gate increased. The results demonstrated high accuracy of the proposed flow formula for trapezoidal control gate, which offers a basis for flow measurement in trapezoidal channels in irrigation areas.

Key words

trapezoidal control gate / irrigation channel / water diversion outlet / head loss / flow coefficient / flow formula

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LI Lin , LIU Yan , WANG Yan-wen , et al. Experimental Study on Hydraulic Characteristics of Trapezoidal Control Gate with Upstream Water Diversion Outlets in Irrigation Area[J]. Journal of Changjiang River Scientific Research Institute. 2025, 42(4): 112-119 https://doi.org/10.11988/ckyyb.20240028

References

List( Publishing order | Descend order by publishing year | Descend order by cited within ) Chart analysis

[1]	张鲁国, 李琳. 一种梯形闸门:中国,CN211571637U[P].2020-09-25. (ZHANG Lu-guo, LI Lin. A Trapezoidal Gate,China,CN211571637U[P].2020-09-25.) (in Chinese) Cited in this article [1]

[2]	李琳, 赵帅杰. 垂直梯形闸门自由出流水力特性试验研究[J]. 水利学报, 2023, 54(6): 677-685, 695. (LI Lin, ZHAO Shuai-jie. Study on the Hydraulics of Vertical Trapezoidal Sluice Gate under Free Flow Conditions[J]. Journal of Hydraulic Engineering, 2023, 54(6): 677-685, 695.) (in Chinese) Cited in this article [7]

[3]

孟万尚, 赵帅杰, 李琳. 基于人工神经网络的梯形闸门流量计算模型[J]. raybet体育在线院报, 2024, 41(9): 86-92.

(MENG

Wan-shang

, ZHAO

Shuai-jie

, LI

Lin

. Flow Calculation Model for Trapezoidal Gate Based on Artificial Neural Network[J]. Journal of Changjiang River Scientific Research Institute, 2024, 41(9): 86-92.) (in Chinese)

Cited in this article [1]

[4]	MARASHI A, KOUCHAKZADEH S, RASHIDI N, et al. Rotary Gate: Submerged Flow Condition[J]. Flow Measurement and Instrumentation, 2021, 81: 102035. Cited in this article [1]

[5]	MARASHI A, KOUCHAKZADEH S, YONESI H A, et al. Hydraulics of Rotary Gate: Novel Structure for Semicircular Canals[J]. Journal of Irrigation and Drainage Engineering, 2021, 147(4):04021003. Cited in this article [1]

[6]	BABAEI S S, MOHAMMADZADEH-HABILI J, ZOMORODIAN S M. Experimental and Theoretical Modeling of a Quarter-circular Gate Flow[J]. Flow Measurement and Instrumentation, 2021, 80: 101983. Cited in this article [1]

[7]	张政. 对开斜立轴式水力自控闸门水流特性研究[D]. 泰安: 山东农业大学, 2020. (ZHANG Zheng. Study on Water Flow Characteristics of Split Inclined Vertical Shaft Hydraulic Self-control Gate[D]. Tai’an: Shandong Agricultural University, 2020.) (in Chinese) Cited in this article [1]

[8]	冯健. 轨道式水力自动闸门水流特性及泄流能力研究[D]. 泰安: 山东农业大学, 2020. (FENG Jian. Study on Flow Characteristics and Discharge Capacity of Track Hydraulic Automatic Gate[D]. Tai’an: Shandong Agricultural University, 2020.) (in Chinese) Cited in this article [2]

[9]	LAURIA A, CALOMINO F, ALFONSI G, et al. Discharge Coefficients for Sluice Gates Set in Weirs at Different Upstream Wall Inclinations[J]. Water, 2020, 12(1): 245. Cited in this article [1]

[10]	闫旭, 胡秀华, 董小花, 等. 水力自控斜轴式闸门研究[J]. 农业与技术, 2022, 42(10):61-66. (YAN Xu, HU Xiu-hua, DONG Xiao-hua, et al. Research on Hydraulic Self-control Sluice Gate with Inclined-shaft[J]. Agriculture and Technology, 2022, 42(10):61-66.) (in Chinese) Cited in this article [1]

[11]	吉中亮, 吕宏兴. 矩形渠道闸前水流水力特性试验研究[J]. 人民黄河, 2008, 30(1):77-78. (JI Zhong-liang, LÜ Hong-xing. Retrospection and Evaluation of Study on Annual Consultation and Tracing of the Yellow River Harnessing[J]. Yellow River, 2008, 30(1):77-78.) (in Chinese) Cited in this article [1]

[12]	KUBRAK E, KUBRAK J, KICZKO A, et al. Flow Measurements Using a Sluice Gate; Analysis of Applicability[J]. Water, 2020, 12(3): 819. Cited in this article [1]

[13]	SALMASI F, ABRAHAM J. Prediction of Discharge Coefficients for Sluice Gates Equipped with Different Geometric Sills under the Gate Using Multiple Non-linear Regression (MNLR)[J]. Journal of Hydrology, 2021,597:125728. Cited in this article [1]

[14]	申祖宁, 张文正, 姜明梁, 等. 明渠平板闸门过闸流量特性研究[J]. 节水灌溉, 2021(12): 56-60. (SHEN Zu-ning, ZHANG Wen-zheng, JIANG Ming-liang, et al. Study on Discharge Characteristics of Open Channel under the Regulation of Flat Gate[J]. Water Saving Irrigation, 2021(12): 56-60. ) (in Chinese) Cited in this article [1]

[15]

侯冬梅, 王才欢, 刘毅. 调水工程输水渠道堰闸流量计算方法探讨[J]. raybet体育在线院报, 2013, 30(8): 79-83.

(HOU

Dong-mei

, WANG

Cai-huan

, LIU

. Discussion on the Calculation Formula of Discharge Flow at Weir Sluice in Water Transfer Project[J]. Journal of Yangtze River Scientific Research Institute, 2013, 30(8): 79-83.) (in Chinese)

Cited in this article [1]

[16]

曹玉升, 畅建霞, 陈晓楠, 等. 基于遗传程序的南水北调中线节制闸过闸流量计算模型研究[J]. 水利学报, 2016, 47(6):834-840.

(CAO

Yu-sheng

, CHANG

Jian-xia

, CHEN

Xiao-nan

, et al. Research of Discharge Calculation Model Based on Genetic Programming Applied to South-to-north Water Diversion Middle Route Project[J]. Journal of Hydraulic Engineering, 2016, 47(6):834-840.) (in Chinese)

Cited in this article [1]

[17]	SAHIB J H, AL-WAELI L K, JABER AL RAMMAHI A H. Utilization of ANN Technique to Estimate the Discharge Coefficient for Trapezoidal Weir-gate[J]. Open Engineering, 2022, 12(1): 142-150. Cited in this article [1]

[18]

胡明宇, 王文娥, 胡笑涛, 等. U形渠道平板闸门过流能力试验研究[J]. 灌溉排水学报, 2023, 42(4): 116-122.

(HU

Ming-yu

, WANG

Wen-e

, HU

Xiao-tao

, et al. Experimental Study of Flow Characteristics through Sluice Gates in U-shaped Channels[J]. Journal of Irrigation and Drainage, 2023, 42(4): 116-122.) (in Chinese)

Cited in this article [1]

[19]

李红, 王文娥, 胡笑涛, 等. 节制闸开度对分水口流速分布的影响[J]. 中国农业大学学报, 2022, 27(2):155-163.

(LI

Hong

, WANG

Wen-e

, HU

Xiao-tao

, et al. Influence of Control Gate Opening on the Velocity Distribution of Bifurcation Channel[J]. Journal of China Agricultural University, 2022, 27(2):155-163.) (in Chinese)

Cited in this article [1]

[20]

丁新求, 潘斌生, 李绍敏. 分水角对建筑物过流能力影响的成因分析[J]. 华北水利水电学院学报, 2004, 25(3): 16-19.

(DING

Xin-qiu

, PAN

Bin-sheng

, LI

Shao-min

. Study and Analysis about the Effect of Diversion Angle on the Conveyance Copacity of Diversion Construction[J]. Journal of North China Institute of Water Conservancy and Hydroelectric Power, 2004, 25(3): 16-19.) (in Chinese)

Cited in this article [1]

[21]	赵德志, 李焱. 水工模型试验关于表面张力影响的波速论证[J]. 水利学报, 2004, 35(4): 38-41. (ZHAO De-zhi, LI Yan. Effect of Surface Tension on Hydraulic Model Test[J]. Journal of Hydraulic Engineering, 2004, 35(4): 38-41.) (in Chinese) Cited in this article [1]