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Development of a wave-current numerical model using Stokes 2nd Order Theory

Lloyd, Catherine ORCID:, O'Doherty, Timothy ORCID: and Mason-Jones, Allan ORCID: 2019. Development of a wave-current numerical model using Stokes 2nd Order Theory. International Marine Energy Journal 2 (1)

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The optimisation of a method to numerically simulate 3D velocity fields of combined wave-current flows, at individual wave resolution, is proposed. ANSYS CFX 18.0 was used to develop a homogenous multiphase model using volume fractions to define the different phase regions. By applying CFX Expression Language at the inlet of the model, Stokes 2nd Order Theory was used to define the upstream wave and current characteristics. Horizontal and vertical velocity components, as well as the surface elevation of the numerical model were compared against theoretical and experimental wave data for 3 different wave characteristics in 2 different water depths. The comparison highlighted the numerical homogeneity between the theoretical and experimental data. Therefore, this study has shown that the modelling procedure used can accurately replicate experimental testing facility flow conditions, providing a potential substitute to experimental flume or tank testing.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TC Hydraulic engineering. Ocean engineering
ISSN: 2631-5548
Funders: EPSRC
Date of First Compliant Deposit: 29 October 2019
Date of Acceptance: 24 September 2019
Last Modified: 07 Feb 2023 02:52

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