Numerical modelling of flow over sharp-crested rectangular contracted weir

Research output: Contribution to conferencePaperpeer-review

4 Downloads (Pure)

Abstract

Weirs are flow control structures that can be used for flow diversion purposes. They are classified according to section geometry or their length in the flow direction. For sharp-crested rectangular weirs, Rehbock [1] derived stage-discharge equations. In contracted geometries, streamlines curve at the approach flow leading to variations in flow structures. For this case, [2] proposed an equation for discharge as a function of the opening rate at the section (ratio of opening width to total width, b/B). We developed CFD models to test their accuracy in modelling weir flow. For the contracted weir cases, flow structures were visualised upstream of the weir.
Original languageEnglish
Number of pages2
Publication statusPublished - 2021
EventThe 2nd International Symposium on Water System Operations - Bristol, United Kingdom
Duration: 1 Sep 20213 Sep 2021
https://iswso2020.info/

Conference

ConferenceThe 2nd International Symposium on Water System Operations
CountryUnited Kingdom
CityBristol
Period1/09/213/09/21
Internet address

Keywords

  • modelling and visualisation tools
  • diversion systems and water transfers
  • CFD
  • multiphase flow modelling
  • weirs

Fingerprint

Dive into the research topics of 'Numerical modelling of flow over sharp-crested rectangular contracted weir'. Together they form a unique fingerprint.

Cite this