Extreme wave loads on submerged water intakes in shallow water

  1. Get@NRC: Extreme wave loads on submerged water intakes in shallow water (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1016/S1001-6058(15)60454-1
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Journal titleJournal of Hydrodynamics, Ser. B
Subjectwave force; water intake; drag force; inertia force; coastal engineering
AbstractThis paper provides new guidance concerning the hydrodynamic loads on submerged intake structures located in shallow water under breaking and non-breaking waves. Results from a series of experiments conducted in a large wave flume at 1:15 scale to study the hydrodynamic forces exerted on a generic intake structure located on a sloping seabed in shallow water below breaking and non-breaking irregular waves are presented. Based on analysis of the experimental data, empirical relationships are developed to describe the peak loads in terms of characteristic wave parameters such as significant wave height and peak wave period. The distribution of the peak loads across different parts of the intake structure is also described. Drag and inertia force coefficients for the horizontal forcing on the intake structure and for the main structural sub-components are derived and presented. It is shown that the well-known Morison equation, with appropriate drag and inertia force coefficients, can provide reasonable estimates of the moderate horizontal loads, but the peak loads are less well predicted.
Publication date
AffiliationOcean, Coastal and River Engineering; National Research Council Canada
Peer reviewedYes
NPARC number23001027
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Record identifier5c318d69-4208-48b4-975a-9aa5433d6bd3
Record created2016-11-29
Record modified2016-11-29
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