Developing the Extreme Wave Indicators for Spectral Model Using Phase Resolving Studies

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    Author
    Kirezci, Cagil
    Date
    2020
    Affiliation
    Infrastructure Engineering
    Metadata
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    Document Type
    PhD thesis
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/258836
    Description

    © 2020 Cagil Kirezci
    Abstract
    The relation between rogue wave occurrence statistics and properties of the directional and unidirectional wind-wave spectrum, described by the JONSWAP spectrum, are investigated. The free surface statistics are obtained from phase-resolving simulations. The stochastic approach to rogue wave occurrence is conducted based on the quantitative indicator parameters, which are designed to represent instabilities in wave-trains. Numerical findings are compared with measurements. Further, extreme value analysis (EVA) has been applied to indicator parameters based on 40 years of global wave hindcast data.
    Keywords
    Rogue Waves, Rogue Wave Indicators, Modulational Instability, Phase Resolving Simulations, Fully Nonlinear Simulations, HOSM, Wave Crest Distribution, Wave Height Distributions, Extreme Value Analysis

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