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《Journal of Yangtze River Scientific Research Institute》 2003-05
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Hydraulic calculation for free flow in circular section by iterative method

LU Hong?xing, BA Duo?duo,SONG Song?bai (College of Water Conservancy and Architecture Engineering of Northwest Science and Technology University of Agriculture & Forestry, Yangling 712100,China)  
Owing to the fact that the calculation formulas of normal depth and critical depth for free flow in circular section of tunnel and drainage culvert werent expressed by explicit function in hydraulics, the conventional trial and error method and specific hydraulic graphs had to be used in calculating these values. In order to improve this situation, an iteration formulation for calculating these two parameters were derived. The calculation formulas of limiting tunnel diameter and limiting discharge under the condition of the net space area not less than 15% of the total cross section area or the free height not less than 0.4 m, were presented, and the judgment expressions of maximum water depth and discharge with uniform flow were given. The iterative operation was used in the calculation. After examination, the results show that the method has better convergence and higher precision and can be used in practical engineering design.
【Fund】: 国家自然科学基金资助项目(59979023);; 科技部863计划项目(2001A242111)
【CateGory Index】: TV131
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【References】
Chinese Journal Full-text Database 9 Hits
1 ZHAO Yan-feng,SONG Songbai,MENG Qin-qian(College of Water Resources and Architectural Engineering,Northwest A&FUniversity,Yangling 712100,China);Approximate Method Calculating Critical Water Depth in Common City-opening Shaped Cross-section[J];Journal of Yangtze River Scientific Research Institute;2008-04
2 L Hong-xing 1,YANG Cen 1,LU Ze-sheng 2,LUAN Wei-gong 2,BA Duo-duo 1,LI Jian-xiong 2 (1.College of Water Resources and Architectural Engineering,Northwest Sci-tech University of Agriculture and Forestry,Yangling 712100,China;2.Taohe River Water Transfer Project Water Resources and Hydropower Development Co.Ltd of Gansu Province,Lanzhou 730030,China);Prototype Observation on Roughness of Main Channel of Taohe River Water Transfer First-phase Project(1)——Research Method and Monitoring of Water-level and Discharge[J];Journal of Yangtze River Scientific Research Institute;2009-12
3 LV Hong-xing1,LU Ze-sheng2,LUAN Wei-gong2,BA Duo-duo1,LI Jian-xiong2,YANG Cen1(1.College of Water Resources and Architectural Engineering,Northwest Sci-tech University ofAgriculture and Forestry,Yangling 712100,China;2.Taohe River Water Transfer Project WaterResources and Hydropower Development Co.Ltd of Gansu Province,Lanzhou 730030,China);Prototype Observation Research on Roughness of Main Channel of Taohe River Water Transfer First-phase Project(2)——Result and Economic Benefit of Prototype Observation[J];Journal of Yangtze River Scientific Research Institute;2010-02
4 ZHU Ke-lin(College of Water Resources and Architectural Engineering,Northwest A & F University,Yangling,Shaanxi 712100,China);Solution Formula for Critical Water Depth of Semi-circular Section[J];Journal of Water Resources and Architectural Engineering;2010-01
5 Zhang Kuandi,LüHongxing,Zhao Yanfeng (College of Water Conservancy and Architectural Engineering,Northwest Agriculture and Forestry University,Yangling 712100,China);Direct calculation for normal depth and critical depth of circular section tunnel under free flow[J];Transactions of the Chinese Society of Agricultural Engineering;2009-03
6 ZHAO Yan-feng1,2,ZHU Han-ying3,WANG Zheng-zhong1,2(1.College of Water Resources and Architectural Engineering,Northwest A & F University,Yangling 712100,China;2.Research Center of Water Engineering Safety and Disaster Prevention,Northwest A & F University,Yangling 712100,China;3.Management Center of Weihe River and Chanhe River,Xi'an Water Affairs Bureau,Xi'an 710015,China);New approximate formula for circular cross section of normal depth[J];Journal of Hohai University(Natural Sciences);2010-01
7 ZHAO Yan-feng,SONG Song-bai,LI Yu(College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling 712100,China);Approximate formula for calculating the critical water depth at circular cross section[J];Advances in Science and Technology of Water Resources;2008-02
8 Zhao Yanfeng1,2 Wang Zhengzhong1,2 Meng Qinqian1(1.College of Water Resources & Architectural Engineering,Northwest A&F University,Yangling 712100,China;2.Reseach Center of Water Engineering Safety & Disaster Prevention,Northwest A&F University,Yangling 712100,China);An Approximate Calculation Formula of Contracted Water Depth in Free Flow Circular Cross-section[J];Journal of China Three Gorges University(Natural Sciences);2009-01
9 ZHAO Yanfeng1,2,LIU Jun3,MEI Shuxia3,WANG Zhengzhong1,2,MENG Qinqian1 (1.College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling 712100,China;2.Reseach Center of Water Engineering Safety and Disaster Prevention,Northwest A&F University,Yangling 712100,China;3.Water and Electricity Work Team of Weibin District of Baoji City,Baoji 712000,China);Approximate method for calculating normal water depth in common city-opening shaped cross-section[J];Engineering Journal of Wuhan University;2009-06
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 Liu Qingtan; Huang Youyu; Xu Xiaohao(Department of Mathematics, Physics and Mechanics, Changsha Railway University, Changsha, 410075);The Stress Analysis of Finite Element of Space to Underground Branch Pipe of Pressure[J];JOURNAL OF CHANGSHA RAILWAY UNIVERSITY;1996-02
2 REN Song-lin,SHI Zi-tang,LI Zhi-feng and et al. State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University;Dam safety appraisal for Zhengjiachong reservoir[J];Dam & Safety;2008-01
3 LUO Tian-feng,LV Hong-xing(College of Water Conservancy and Architectural Engineering,Northwest A & F University,Yangling 712100,China);Discussion of Velocity Profile in Open Channel with U-shaped Cross-section[J];Journal of Irrigation and Drainage;2006-02
4 JING Xiang-feng1,2,LV Hong-xing1,2, PAN Cheng-zhong2, LUO Tian-feng3(1.College of Water Resources and Architectural Engineering,Northwest A & F University, Yangling 712100,China;2.The State Key Laboratory of Soil Erosion and Dry land Farming on the Loess Plateau,Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China;3.Institute of Water Resources of Gansu Province, Lanzhou 730000,China);Experimental Study on Flow Pattern of Erosive Overland Flow[J];Journal of Irrigation and Drainage;2008-02
5 LI Yuan-nong~(1,2),ZHANG Xiao-peng~1,FEI Liang-jun~1, LI Fang-hong~1 (1.Institute of Water Resource,Xi'an University of Science and Engineering Technology,Xi'an,710048,China;2.College of Water Conservancy and Architecture,Northwest A & F University,Yangling,Shaanxi 712100,China);Study on technical variables in film hole furrow irrigation with plastic-covered ridge[J];Agricultural Research in the Arid Areas;2006-04
6 ZHANG Yao xian, ZHENG Wan yong, MENG Zhao ling, BAI Hong lin, CHU Mi ping (Yellow River Conservancy Technical Institute Kaifeng Henan 475001);A Research on Vibration Problems of Liuyuankou Culvert Gate along the Yellow River[J];Journal of Yellow River Conservancy Technical Institute;2000-04
7 WANG Li-qing1,MA Yue-xian1,YUAN Wen-lin1,WU Hao2(1.College of Environmental & Hydraulic Engineering,Zhengzhou University,Zhengzhou 450002,China;2.Yellow River Engineering Consulting Co.,Ltd.,Zhengzhou 450003,China);The relationship between the length of the tunnel and the coefficient of pressure transmission[J];Henan Science;2006-01
8 XIN Ying-hua1,WANG Zheng-zhong1,2(1.College of Water Conservancy and Architectural Engineering,Northwest Sci-tech University of Agriculture and Forestry,Yangling 712100,China;2.State Key Laboratory of Frozen Soil Engineering,CAS,Lanzhou 730000,China);The Structural and Hydraulic Analysis on Frost-heaving Concrete Lining of The U-shape Canal[J];Water Saving Irrigation;2008-02
9 LIU Hong-tao,ZHAO Rui-juan,LV Hong-xing(College of Water Conservancy and Architecture Engineering,Northwest A&F University,Yang ling 712100,Shaanxi Province,China);Experimental Research and Application of Airfoil-shaped Measuring-flume in Rectangular Channel[J];Water Saving Irrigation;2008-05
10 WANG Shu-cai;Numerical analysis on water blockade and drainage limitation of tunnel with high hydraulic pressure[J];Shanxi Architecture;2007-07
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 Chen Feiyong (Yangtze River Scientific Research Institute, Wuhan 430010);A Method for Calculating Critical Water Depth of Open Channel with Trapezoid Section and Smooth Slope[J];Journal of Yangtze River Scientific Research Institute;1993-04
2 Zeng Xiang,Huang Guobing,Duan Wengang (Yangtze River Scientific Research Institute, Wuhan 430010);Summarization of Investigation on Roughness of Concrete Channels[J];JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTITUTE;1999-06
3 LU Hong xing,XIN Quan cai,HUA Li feng (College of Water Conservancy and Architectural Engineering, Northwest Sci Tech University of Agriculture and Forestry,Yangling 712100,China);Calculation on normal depth of horseshoe cross section by iterative method[J];Journal of Yangtze River Scientific Research Institute;2001-03
4 LV Hong-xing(College of Water Conservancy and Architectural Engineering,Northwest Sci-Tech University of Agriculture and Forestry, Yangling, 712100, China);Calculation on critical depth of horseshoe cross-section by iterative method[J];Journal of Yangtze River Scientific Research Institute;2002-03
5 WANG Zheng-zhong~(1,2),CHEN Tao~1,WAN Bin~1,ZHANG Xin-min~3 (1.College of Water Conservancy and Architectural Engineering,Northwest Sci-tech University of Agriculture and Forestry, Yangling, 712100,China;;3.Lanzhou University, Lanzhou 730000, China);A new approximate formula to critical depth of round section canal[J];Journal of Yangtze River Scientific Research Institute;2004-02
6 WANG Zheng-zhong~1,SHEN Yong-kang~2,PENG Yuan-ping~3,CHEN Tao~1,ZhaoYing~4 (1.Water Conservancy and Construction Engineering Institute, Northwest Sci-Tech University of Agriculture and Forestry, Yangling712100, China; 2.Hohai Univ.,Nanjing210098, China; 3.Baoji City Water Conservancy and Hydrppower Engineering Planning Design Institution, Baoji721000,China; 4.Shangnan County Water Conservancy Bureau, Shangnan726306,China);Direct Formula Calculating Critical Depth for Open Trapezoidal Channel with Spherical Bed[J];Journal of Yangtze River Scientific Research Institute;2005-03
7 Wang Zhengzhong 1, Lei Tianchao 2, Song Songbai 1, Wu Junchang 2 1. Water Conservancy and Construction Engineering Institute, Northwest Agriculture University, Yangling 712100 2. Mangement Bureau of Jinghui Canal, shaanxi Province, Sanyuan 713800;An Iterative Method Calculating Water Depth at Vena Contracta in Trapezoidal Cross section[J];JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTITUTE;1997-03
8 Wang Zhengzhong 1, Xi Genzhan 2, Song Songbai 1, Wang Yaoguang 2 (1 Water Conservancy and Construction Engineering Institute, Northwest Agriculture University, Yangling 712100) (2 Management Bureau of Jinghui Canal, Shanxi Province, Sanyuan 71380;A Direct Calculation Formula for Normal Depth in Open Trapezoidal Channel[J];JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTITUTE;1998-06
9 Wang Zhengzhong, Song Songbai, Wang Shimin (Water Conservancy and construction Engineering Institute, Northwest Agriculture University, Yangling 712100);A Direct Formula Calculating Normal Depth for Open Trapezoidal Channel with Spherical Bed[J];JOURNAL OF YANGTZE RIVER SCIENTIFIC RESEARCH INSTITUTE;1999-04
10 JIN Ju liang 1,FU Qiang 2,WEI Yi ming 3,DING Jing 2 (1 School of Civil Engineering,Hefei University of Technology,Hefei Anhui,230009,PRC; 2 College of Hydro-electricity,Sichuan University,Chengdu Sichuan,610065,PRC; 3 Institute of Policy & Man;Optimal computation for conjugate water depth of hydraulic jumps in trapezoidal channels[J];Journal of Northeast Agricultural University;2002-01
【Secondary References】
Chinese Journal Full-text Database 6 Hits
1 ZHANG Kuan-di1,2,LV Hong-xing1,ZHAO Yan-feng1 (1.College of Water Resources and Architectural Engineering,Northwest A & F University,Yangling712100,China;2.Institute of Soil and Water Conservation,CAS.,Yangling 712100,China);Approximate Method Calculating Normal Depth of Arched-gate Section Tunnel[J];Journal of Yangtze River Scientific Research Institute;2010-02
2 ZHU Ke-lin(College of Water Resources and Architectural Engineering,Northwest A & F University,Yangling,Shaanxi 712100,China);Solution Formula for Critical Water Depth of Semi-circular Section[J];Journal of Water Resources and Architectural Engineering;2010-01
3 Zhao Yanfeng1,2,Wang Zhengzhong1,2,Lu Qin1 (1.College of Water Resources and Architectural Engineering,Northwest Agriculture and Forestry University,Yangling 712100,China;2.Reseach Center of Water Engineering Safety and Disaster Prevention,Northwest Agriculture and Forestry University,Yangling 712100,China);Formula for direct calculation of contracted depth of channel with trapezoidal section[J];Transactions of the Chinese Society of Agricultural Engineering;2009-08
4 ZHAO Yan-feng1,2,ZHU Han-ying3,WANG Zheng-zhong1,2(1.College of Water Resources and Architectural Engineering,Northwest A & F University,Yangling 712100,China;2.Research Center of Water Engineering Safety and Disaster Prevention,Northwest A & F University,Yangling 712100,China;3.Management Center of Weihe River and Chanhe River,Xi'an Water Affairs Bureau,Xi'an 710015,China);New approximate formula for circular cross section of normal depth[J];Journal of Hohai University(Natural Sciences);2010-01
5 Zhao Yanfeng1,2 Wang Zhengzhong1,2 Meng Qinqian1(1.College of Water Resources & Architectural Engineering,Northwest A&F University,Yangling 712100,China;2.Reseach Center of Water Engineering Safety & Disaster Prevention,Northwest A&F University,Yangling 712100,China);An Approximate Calculation Formula of Contracted Water Depth in Free Flow Circular Cross-section[J];Journal of China Three Gorges University(Natural Sciences);2009-01
6 ZHANG Kuan-di1,2,Lü Hong-xing1,ZHANG Xin-yan1(1 College of Water Resources and Architectural Engineering,Northwest A&F University,Yangling,Shaanxi 712100,China;2 State Key Laboratory of Soil Erosion and Dryland Fariming on Loess Plateay,Institute of Soil and Water Conservation,CAS,Yangling,Shaanxi 712100,China);Approximate method of calculating critical water depth to arched section tunnel[J];Journal of Northwest A & F University(Natural Science Edition);2009-11
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