Numerical modelling of flow over sharp-crested rectangular contracted weir

Title

Numerical modelling of flow over sharp-crested rectangular contracted weir

 Author

Yildiz, B. (TU Delft Rivers, Ports, Waterways and Dredging Engineering; Mugla Sitki Kocman University; Deltares) ORCID 0000-0002-0144-3562
Uijttewaal, W.S.J. (TU Delft Environmental Fluid Mechanics) ORCID 0000-0002-6043-8026
Bricker, J.D. (University of Michigan) ORCID 0000-0002-7503-6652
Mosselman, E. (TU Delft Rivers, Ports, Waterways and Dredging Engineering; Deltares) ORCID 0000-0002-4335-5085

 Date

2021

 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.

 Subject

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

 To reference this document use:

http://resolver.tudelft.nl/uuid:6b9c7184-e4bd-4607-9879-5d18559b2d0d

 Event

The 2nd International Symposium on Water System Operations, 2021-09-01 → 2021-09-03, Bristol, United Kingdom

 Part of collection

Institutional Repository

 Document type

conference paper

 Rights

© 2021 B. Yildiz, W.S.J. Uijttewaal, J.D. Bricker, E. Mosselman
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