Results 31 to 40 of about 579,350 (230)

Analysis of Wake Turbulence for a Savonius Turbine for Malaysia’s Slow-Moving Current Flow

open access: yesInternational Journal of Renewable Energy Development, 2022
With Malaysia being surrounded by water bodies, tidal energy could be used for energy extraction. While several turbine designs and technologies have been used for tidal energy extraction, information on the use of vertical-axis tidal turbines (VATTs ...
Anas Abdul Rahman   +4 more
doaj   +1 more source

Studying the Wake of a Tidal Turbine with an IBM-LBM Approach Using Realistic Inflow Conditions

open access: yesEnergies, 2022
The lattice Boltzmann method is used to model a horizontal axis tidal turbine. Because tidal turbines generally operate in highly turbulent flows, a synthetic eddy method is implemented to generate realistic turbulent inflow condition. The approach makes
Mickael Grondeau   +5 more
semanticscholar   +1 more source

Constructive interference effects for tidal turbine arrays

open access: yesJournal of Fluid Mechanics, 2022
The performance benefits of deploying tidal turbines in close side-by-side proximity to exploit constructive interference effects are demonstrated experimentally using two 1.2 m diameter turbines. The turbines are arrayed side-by-side at 1/4 diameter tip-
J. McNaughton   +5 more
semanticscholar   +1 more source

Tidal-stream power assessment—A novel modelling approach

open access: yesEnergy Reports, 2020
An alternative approach for simulating turbine array energy capture, momentum sink-TOC, was developed to improve conventional methodologies for assessing tidal-stream energy resource.
L.M. Flores Mateos, M. Hartnett
doaj   +1 more source

Feasibility Study: Effect of Tidal Turbines Cut-in Speed for Power Generation in New Zealand

open access: yesChemical Engineering Transactions, 2021
This paper proposes and evaluates an optimized system of tidal turbines as a renewable energy generating unit in New Zealand. A comprehensive simulation model has been set up, using several available commercial software packages to test the performance ...
Navid Majdi Nasab, Jeff Kilby
doaj   +1 more source

Modelling Tidal Stream Turbines [PDF]

open access: yes, 2015
This book provides insights on a broad spectrum of renewable and sustainable energy technologies from the world’s leading experts. It highlights the latest achievements in policy, research and applications, keeping readers up-to-date on progress in this rapidly advancing field.
Frost, Carwyn   +4 more
openaire   +2 more sources

Instabilities in tidal turbine wakes [PDF]

open access: yesProceedings of the European Wave and Tidal Energy Conference, 2023
We report on the observation of vortex instabilities in the wake of a tidal turbine undergoing harmonic unsteady axial inflow (e.g. due to surface waves). The work was carried out using unsteady RANS (URANS) modelling using the open-source CFD software OpenFOAM, using the `pimpleDyMFoam' solver.
Smyth, ASM, Nishino, T, Young, AM
openaire   +1 more source

A review of component and system reliability in tidal turbine deployments

open access: yes, 2021
Tidal stream energy has the potential to contribute to global renewable energy generation, but this remains largely untapped. Technical developments have helped create a nascent industry with several pre-commercial installations.
S. Walker, P. Thies
semanticscholar   +1 more source

Experimental investigation into the improvement of self-starting capability of vertical-axis tidal current turbine

open access: yesEnergy Reports, 2021
Indonesia has a lot of tidal current energy resources that can be harnessed using a vertical-axis turbine. However, one of the disadvantages of the vertical-axis turbine is its low self-starting capability.
Dendy Satrio, I Ketut Aria Pria Utama
doaj   +1 more source

Analysis and Design of Monopile Foundations for Offshore Wind and Tidal Turbine Structures

open access: yesWater, 2022
This paper aims to design an integrated offshore structure capable of supporting a hybrid assembly of one wind plus two tidal turbines. The monopile has been found to be a suitable foundation type as the most inexpensive solution in water depths of less ...
Navid Majdi Nasab   +2 more
semanticscholar   +1 more source

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