Formation of Large-Amplitude Wave Groups in an Experimental Model Basin

Bassler, Christopher C.; Lang, Gerritt E; Lee, Sang S; Carneal, Jason B.; Park, Joel T.; Dipper, Martin

doi:10.21236/ada493240

Cited by 7 publications

(1 citation statement)

References 45 publications

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“…The wavemaker control should be robust enough to reproduce the prescribed wave train. Most of modern paddle wavemakers have enough control for that, however, even older wave generating equipment still can be used for the formation of large-amplitude wave groups [31]. The wave field measurement may include:…”

Section: Experimental Approachmentioning

confidence: 99%

Towards an improved critical wave groups method for the probabilistic assessment of large ship motions in irregular seas

Anastopoulos

Spyrou

Bassler³

et al. 2016

Probabilistic Engineering Mechanics

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A novel approach for the systematic construction of wind-generated, high probability, wave groups, is presented. The derived waveforms originate from a Markov chain model allowing for the incorporation of cross-correlations between successive wave heights and periods. Analytical expressions of the transition probability distributions are provided in terms of copulas. Rank correlations are estimated from an envelope-process-based approach. The Karhunen-Loève theorem is employed in order to construct the continuous analogs of discrete height and period successions. The method seems to predict well the expected wave heights. The period predictions are conservative, yet they follow the trends of simulated wave trains. Comparisons with predictions of the "Quasi-Determinism" theory for very high runs indicate good coincidence. The derived wave groups are intended to be used for the assessment of ship stability in irregular seas.

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Section: Experimental Approachmentioning

confidence: 99%