Numerical and experimental investigation of flow and scour around a circular pile

The flow around a vertical circular pile exposed to a steady current is studied numerically and experimentally. The numerical model is a three-dimensional model. The model validation was achieved against new experimental data (which include two-component laser-Doppler anemometry (LDA) flow measureme...

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Bibliographic Details
Published in:Journal of fluid mechanics 2005-07, Vol.534, p.351-401
Main Authors: ROULUND, ANDREAS, SUMER, B. MUTLU, FREDSØE, JØRGEN, MICHELSEN, JESS
Format: Article
Language:English
Subjects:
Applied sciences
Bed load
Bridge elements
Bridges
Buildings. Public works
Cohesive sediments
Exact sciences and technology
Flow measurement
Free surfaces
Froude number
Mathematical models
Reynolds number
Scour
Sediment load
Shear stress
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Summary:The flow around a vertical circular pile exposed to a steady current is studied numerically and experimentally. The numerical model is a three-dimensional model. The model validation was achieved against new experimental data (which include two-component laser-Doppler anemometry (LDA) flow measurements and the hot-film bed shear stress measurements, and reported in the present paper) and the data of others, and a $k$–$\omega $ turbulence model was used for closure. The model does not have a free-surface facility and therefore is applicable only to cases where the Froude number is small ($\hbox{\it Fr}\,{
ISSN:0022-1120
1469-7645
DOI:10.1017/S0022112005004507