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|Title:||Discrete vapour cavity model with efficient and accurate convolution type unsteady friction term|
|Citation:||Proceedings 23rd IAHR Symposium on Hydraulic Machinery and Systems (Yokohama, Japan, October 17-21, 2006) / J. Kurokawa (ed.): Paper 109,  p.|
|Conference Name:||IAHR Symposium on Hydraulic Machinery and Systems (23rd : 2006 : Yokohama, Japan)|
|Anton Bergant, John Vitkovsky, Angus Simpson, Martin Lambert, Arris Tijsseling|
|Abstract:||This paper presents experimental data and numerical simulations of transient vaporous cavitation events generated by a downstream fast valve closure in a pipeline. The experimental apparatus comprises a 37.2 m long constant-sloping pipe of 22.1 mm internal diameter connecting two pressurized tanks. The simulation results show that improper selection of the weighting function in the convolution-based unsteady friction term in the discrete vapour cavity model (DVCM) may significantly attenuate some measured high-frequency pressure pulses and speed-up the timing of the main pressure pulses.|
|Keywords:||Fluid transients, cavitation, discrete vapour cavity model, unsteady friction, pipelines|
|Rights:||Copyright status unknown|
|Appears in Collections:||Civil and Environmental Engineering publications|
Environment Institute publications
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