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3D Free Surface Model of Laboratory Channel with Rectangular Broad-Crested Weir

Author(s): Akhtaruzzaman Sarker; David G. Rhodes

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Keywords: Keywords: CFD; K-εmodel; Volume of fluid method; Free surface flow; Hydraulicstructures

Abstract: Measurements of the free surface profile in a laboratory channel housing a broadcrested weir were carried out at the maximum flow rate of the facility. The experimental arrangement was then numerically modelled by CFD commercial software (FLUENT), using the standard k-εturbulence model and wall function, in conjunction with the volume of fluid free surface model. Predicted results agreed closely with experiment near the critical section on the weir and in the super-critical flow downstream of the weir. However, the CFD under-predicted the upstream water level.

DOI:

Year: 1999

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