Results 71 to 80 of about 978 (186)

Effect of Wavelength on Turbine Performances and Vortical Wake Flows for Various Submersion Depths

open access: yesJournal of Marine Science and Engineering
When tidal turbines are deployed in water areas with significant waves, assessing the surface wave effects becomes imperative. Understanding the dynamic impact of wave–current conditions on the fluid dynamic performance of tidal turbines is crucial. This
Bohan Liu, Sunho Park
doaj   +1 more source

Spanwise flow corrections for tidal turbines

open access: yesInternational Marine Energy Journal, 2018
Actuator line computations of two different tidal turbine rotor designs are presented over a range of tip speed ratios. To account for the reduction in blade loading on the outboard sections of these rotor designs, a spanwise flow correction is applied ...
A. Wimshurst, R. Willden
doaj   +1 more source

Optimal design of a tidal turbine

open access: yesIOP Conference Series: Earth and Environmental Science, 2012
An optimal design procedure has been applied to improve the design of an open-center tidal turbine. A specific software developed in C++ enables to generate the geometry adapted to the specific constraints imposed to this machine. Automatic scripts based on the AUTOGRID, IGG, FINE/TURBO and CFView software of the NUMECA CFD suite are used to evaluate ...
J L Kueny, T Lalande, J J Herou, L Terme
openaire   +1 more source

Tidal turbine array modelling

open access: yes, 2014
Computational fluid dynamics (CFD) is used in this thesis to model wind and tidal stream turbines and to investigate tidal turbine fence performance. There are two primary objectives of this work. The first is to develop and validate an actuator line method for the simulation of wind and tidal turbines which applies the blade forces to the flow field ...
Schluntz, J, Schluntz, Justine
openaire   +2 more sources

Towards a Generalized Tidal Turbine Wake Analytical Model for Turbine Placement in Array Accounting for Added Turbulence

open access: yesEnergies
This study seeks to establish a comprehensive model for estimating both the velocity deficit and turbulence intensity within a tidal turbine farm across various layout configurations.
Kabir Bashir Shariff, Sylvain S. Guillou
doaj   +1 more source

Design of a Horizontal Axis Tidal Turbine for Less Energetic Current Velocity Profiles

open access: yesJournal of Marine Science and Engineering, 2019
Existing installations of tidal-stream turbines are undertaken in energetic sites with flow speeds greater than 2 m/s. Sites with lower velocities will produce far less power and may not be as economically viable when using “conventional” ...
Job Immanuel Encarnacion   +2 more
doaj   +1 more source

Verification and validation of blade-resolved viscous-flow tidal turbine simulations

open access: yesInternational Marine Energy Journal
Tidal turbines are a renewable energy source on the rise. The exceptional predictability of tidal currents contributes to a high reliability of this technology, which represents a key advantage in the endeavor to become a major contributor to the energy
Manuel Rentschler   +4 more
doaj   +1 more source

The Potential of Tidal Energy Production in a Narrow Channel: The Gulf of Morbihan

open access: yesJournal of Marine Science and Engineering
The tidal currents of the Gulf of Morbihan reach up to 3.5 m/s within a narrow (200 m large) channel connecting the sea to the inner part of the gulf. In this study, a Telemac2D model validated with a large dataset of field measurements is used to assess
Jérôme Thiébot   +2 more
doaj   +1 more source

Orca hydrofoil shape optimization using Bezier curve and artificial neural network – multiple objective genetic algorithm for low flow velocity

open access: yesJournal of King Saud University: Engineering Sciences
Tidal energy is a clean and predictable power source commonly harnessed using horizontal-axis tidal turbines. The power generation process of these turbines is influenced by various elements, including the hydrofoil performance metrics such as the lift ...
Muhammad Ihsan Masykur, Harinaldi
doaj   +1 more source

Ressource to wire modelling for tidal turbines

open access: yes, 2013
This chapter presents ressource to wire modelling techniques for some complete tidal turbine systems. These models include ressource, turbine and electrical systems.
Benelghali, Seifeddine   +2 more
openaire   +3 more sources

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