Development and experimental verification of a mathematical expression for the discharge rate of a semi-circular open channel

Authors

  • Qu Liqin PhD
  • Yu Xinxiao
  • Xiao Juan
  • Lei Tingwu PhD, Prof, College of Water Conservancy & Civil Engineering, China Agricutural University

DOI:

https://doi.org/10.25165/ijabe.v3i3.159

Keywords:

verification, discharge, open channel flow, weir, circular, wetted area, measurement

Abstract

 Semi-circular open channel plays an important role in various applications and the measurement of its discharge is of interests.  In this study, theoretical formulae for free overflow in a semi-circular channel are developed and presented for the discharge and wetted area relationship.  The traditional discharge formulation and available experimental data are used to verify and validate the proposed relationships.  The discharges calculated by using the proposed relationship show very good agreement with the experimental data sets.  The results from this study supply the basis for circular weir development.

 

Keywords: verification, discharge, open channel flow, weir, circular, wetted area, measurement

 

DOI: 10.3965/j.issn.1934-6344.2010.03.019-026  

Citation: Qu Liqin, Yu Xinxiao, Xiao Juan, Lei Tingwu.  Development and experimental verification of a mathematical expression for the discharge rate of a semi-circular open channel.  Int J Agric & Biol Eng, 2010; 3(3): 19

Author Biographies

Qu Liqin, PhD

Post Doc, Ministry of Education Key Laboratory of Soil and Water Conservation and Desertification Combating, College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083,China

Yu Xinxiao

PhD, Prof, Director, Ministry of Education Key Laboratory of Soil and Water Conservation and Desertification Combating, College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083,China

Xiao Juan

PhD, College of Hydraulic Science and Engineering, Taiyuan University of Technology, Taiyuan, Shanxi Province, 030024, PR China

Lei Tingwu, PhD, Prof, College of Water Conservancy & Civil Engineering, China Agricutural University

PhD, Prof, Director, State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Chinese Academy of Sciences; College of Water Conservancy & Civil Engineering, China Agricultural University

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Published

2010-08-05

How to Cite

Liqin, Q., Xinxiao, Y., Juan, X., & Tingwu, L. (2010). Development and experimental verification of a mathematical expression for the discharge rate of a semi-circular open channel. International Journal of Agricultural and Biological Engineering, 3(3), 19–26. https://doi.org/10.25165/ijabe.v3i3.159

Issue

Vol. 3 No. 3 (2010): IJABE

Section

Natural Resources and Environmental Systems

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