Accuracy of Directional Spectrum Estimation in 2nd Order Multidirectional Waves

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Abstract

For design validation of offshore structures and conceptualisation of wave energy converters, physical model testing performed in wave basin laboratories is often applied. In such cases, knowledge about the wave conditions is of great significance. For validation of the wave condition in such tests, different methods for estimation of the directional wave spectra may be applied. However, different assumptions are imposed in the methods and deviations here from provide uncertainties in the results. The following paper quantifies the influence of nonlinear effects on the accuracy of the estimated directional wave spectra. This is done by analysis of idealised, synthetically generated waves based on second order wave theory and secondly with simplified amplitude dispersion included. The present analyses show that the uncertainties of the directional wave spectra are proportional to the level of nonlinearity present in the wave field.
OriginalsprogEngelsk
TitelProceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference
Antal sider8
UdgivelsesstedOttawa
ForlagInternational Society of Offshore & Polar Engineers
Publikationsdato18 jun. 2023
Sider2395-2403
ISBN (Elektronisk)978-1-880653-80-7
StatusUdgivet - 18 jun. 2023
BegivenhedThe Thirty-third (2023) International Ocean and Polar Engineering Conference - Westin Hotel, Ottawa, Canada
Varighed: 18 jun. 202322 jun. 2023

Konference

KonferenceThe Thirty-third (2023) International Ocean and Polar Engineering Conference
LokationWestin Hotel
Land/OmrådeCanada
ByOttawa
Periode18/06/202322/06/2023
NavnProceedings of the International Offshore and Polar Engineering Conference
ISSN1098-6189

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