New Methods for Stabilizing Rans Turbulence Models with Application to Large Scale Breaking Waves

Georgios Azorakos, Bjarke Eltard Larsen, David R. Fuhrman*

*Corresponding author for this work

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    Abstract

    Recently, Larsen and Fuhrman (2018) have shown that seemingly all commonly used (both k-ω and k-ε variants) two-equation RANS turbulence closure models are unconditionally unstable in the potential flow beneath surface waε use of a modified eddy viscosity. In the present work, three new formally-stable k–ω turbulence model formulations are derived and tested in CFD simulations involving the flow and dynamics beneath large-scale plunging breaking waves, based on experiments of van der A et al. (2017).
    Original languageEnglish
    Publication date2020
    Number of pages1
    Publication statusPublished - 2020
    EventVirtual International Conference on Coastal Engineering (VICCE 2020) - Virtual event
    Duration: 6 Oct 20209 Oct 2020

    Conference

    ConferenceVirtual International Conference on Coastal Engineering (VICCE 2020)
    LocationVirtual event
    Period06/10/202009/10/2020

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