Study of the force coefficients on plates using an open source numerical wave tank

Rajagopalan, Krishnakumar; Nihous, Gérard

doi:10.1016/j.oceaneng.2016.03.028

Study of the force coefficients on plates using an open source numerical wave tank

Journal Article · Wed Apr 20 00:00:00 EDT 2016 · Ocean Engineering

DOI:https://doi.org/10.1016/j.oceaneng.2016.03.028· OSTI ID:1644692

Rajagopalan, Krishnakumar ^[1]; Nihous, Gérard ^[2]

Univ. of Hawaii, Honolulu, HI (United States); University of Hawaii
Univ. of Hawaii, Honolulu, HI (United States)

An open source numerical wave tank based on the OpenFOAM® software was setup and tested to solve the Navier-Stokes equations. This work focused on submerged plates because of their simple geometry, their importance as a design component (e.g., heave plates), and the broad availability of published experimental results. Two-dimensional plates in an oscillatory flow, as well as three-dimensional circular disks and square plates undergoing forced oscillations were simulated in conditions where the nonlinearity of hydrodynamic viscous drag and inertia forces can be probed easily. The effect of plate thickness as well as the ability of the numerical simulations to predict wave radiation damping at shallow plate submergence were also considered. Overall, force coefficient predictions were very satisfactory when compared to experimental data, and generally exhibited less scatter. Here, the influence of both Keulegan-Carpenter number and frequency parameter on the hydrodynamic force could be assessed as well from these numerical simulations as from past laboratory experiments.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Hawaii, Honolulu, HI (United States)

Sponsoring Organization:: USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Water Power Technologies Office

Grant/Contract Number:: FG36-08GO18180

OSTI ID:: 1644692

Alternate ID(s):: OSTI ID: 1359712

Journal Information:: Ocean Engineering, Journal Name: Ocean Engineering Journal Issue: C Vol. 118; ISSN 0029-8018

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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High-fidelity numerical modelling of ocean wave energy systems: A review of computational fluid dynamics-based numerical wave tanks Windt, Christian; Davidson, Josh; Ringwood, John V. Renewable and Sustainable Energy Reviews, Vol. 93 https://doi.org/10.1016/j.rser.2018.05.020	journal	October 2018

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