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A numerical study of the flow through a safety butterfly valve in a hydro-electric power scheme

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Henderson, AD and Sargison, JE and Walker, GJ and Haynes, J (2007) A numerical study of the flow through a safety butterfly valve in a hydro-electric power scheme. In: 16th Australiasian Fluid Mechanics Conference, 2-7 December, 2007, Crown Plaza, Gold Coast, Australia.

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Abstract

A numerical study of the flow through a safety butterfly valve
used in a hydro-electric power scheme to stop water supply to
a downstream penstock is reported. Computational fluid dynamics
applied in a quasi-steady manner is used to predict the
hydrodynamic torque versus opening angle characteristic during
a constant head test. Factors influencing these results, such
as Reynolds number and unsteady flow effects, are found to be
significant. The predicted results are compared with field measurements
of the full-size valve. Issues associated with applying
the numerical results to predict valve characteristics at higher
Reynolds numbers are discussed. Further computational and
experimental studies are recommended.

Item Type: Conference or Workshop Item (Paper)
Page Range: pp. 1116-1122
Date Deposited: 07 Apr 2008 15:05
Last Modified: 18 Nov 2014 03:37
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