Flow modelling and velocity distribution in small irrigation canals

A. Schmidt, C. Huhta, J. Sloat

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Accurate metering of agricultural water is becoming increasingly important world wide. Surprisingly, the dynamics of water in small irrigation canals are not well understood and this limits the accuracy of flow measurements in these channels. To help improve the accuracy of flow data, we performed detailed measurements of the velocity distribution for a variety of flow conditions in a several small irrigation canals. The data collected represent one of the most detailed velocity distribution studies ever undertaken in field conditions for this type of channel. The data were compared with different theoretical velocity distribution models. The results of these comparisons will be presented, along with conclusions about which models are most appropriate for predicting the velocity distribution in these channels. The goal of this project is to support the development of new flow sensors for small irrigation canals that provide improved measurement accuracy.

Original languageEnglish (US)
Title of host publication34th IAHR Congress 2011 - Balance and Uncertainty
Subtitle of host publicationWater in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
PublisherInternational Association for Hydro-Environment Engineering and Research (IAHR)
Pages1498-1505
Number of pages8
ISBN (Electronic)9780858258686
StatePublished - Jan 1 2011
Event34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering - Brisbane, Australia
Duration: Jun 26 2011Jul 1 2011

Publication series

Name34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering

Conference

Conference34th IAHR Congress 2011 - Balance and Uncertainty: Water in a Changing World, Incorporating the 33rd Hydrology and Water Resources Symposium and the 10th Conference on Hydraulics in Water Engineering
CountryAustralia
CityBrisbane
Period6/26/117/1/11

Keywords

  • Flow
  • Irrigation
  • Measurement
  • Modelling
  • Velocity
  • Water

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Water Science and Technology
  • Environmental Science (miscellaneous)

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