Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.1/3432
Título: Effect of relative sediment size on clear-water equilibrium scour depth at single cylindrical piers
Autor: Lança, Rui
Fael, Cristina
Cardoso, António
Palavras-chave: Local scour
Relative sediment size
Cylindrical pier
Electromagnetic measurements
Data: Jun-2011
Editora: IAHR
Resumo: Experiments on local scouring around cylindrical piers were performed in steady clear-water conditions to investigate the effect of sediment size, D50, on equilibrium scour depth, dse. Thirteen experiments, run for 7 to 13 days, were carried out. The dependence of the normalized equilibrium scour depth, dse/Dp, on the relative sediment size, Dp/D50, was identified, corroborating the findings of Sheppard et al. (1995; 1999; 2004). Contrarily to consecrated literature and associated practice, it was observed that the normalized equilibrium scour depth decreases with the relative sediment size, for Dp/D50 > ~100. This effect is possibly one of the causes of frequently reported over prediction of scour by formulas established on the basis of laboratory studies, where frequently Dp/D50 < 100.
Peer review: yes
URI: http://hdl.handle.net/10400.1/3432
ISBN: 978-0-85825-868-6
Versão do Editor: <http://search.informit.com.au/documentSummary;dn=365089734257057;res=IELENG>
Aparece nas colecções:ISE2-Artigos (em revistas ou actas indexadas)

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