Results 21 to 30 of about 579,350 (230)

The impact of turbulence and turbine operating condition on the wakes of tidal turbines [PDF]

open access: yesRenewable Energy, 2021
Before initiating a study on the interaction of multiple wakes, it is imperative that turbine wake hydrodynamics are studied in isolation. In this paper CFD computer simulations of downstream turbine wakes have been run using a scale-resolving hybrid turbulence model known as a detached eddy simulation.
Ebdon, Tim   +6 more
openaire   +2 more sources

Computational Fluid Dynamics-based Simulation and Design of a Horizontal Tidal Turbine System [PDF]

open access: yesE3S Web of Conferences, 2023
Tidal phenomena, the rhythmic rise and fall of sea waters due to gravitational forces among celestial bodies like the Sun, Earth, and moon, offer a dependable source of renewable energy.
Mohamad Azim Mohd Azmi   +1 more
doaj   +1 more source

An analytical double-Gaussian wake model of ducted horizontal-axis tidal turbine

open access: yesThe Physics of Fluids, 2023
The wake development of a tidal turbine should be fully considered in the array arrangement. There are many studies on wake characteristics, mainly focusing on a conventional horizontal-axis turbine, while a ducted turbine has attracted little attention.
Xiaodong Liu   +7 more
semanticscholar   +1 more source

Research on an All-Flow Velocity Control Strategy for a 120 kW Variable-Pitch Horizontal Axis Tidal Current Turbine

open access: yesJournal of Marine Science and Engineering, 2022
Horizontal-axis tidal current turbines have considerable potential to harvest renewable energy from ocean tides. The pitch control system is a critical part of variable-pitch tidal turbines.
Bingzhen Wang   +3 more
doaj   +1 more source

Experimental and Computational Fluid Dynamic Study of Water Flow and Submerged Depth Effects on a Tidal Turbine Performance

open access: yesWater, 2023
This study involves an experimental and numerical analysis of the Hunter turbine, a vertical axis turbine utilized for tidal energy. A laboratory model of the Hunter turbine, featuring an aspect ratio of 1.2, was designed and tested. Numerical equations,
Erfan Ghamati   +2 more
semanticscholar   +1 more source

Viability Analysis of Tidal Turbine Installation Using Fuzzy Logic: Case Study and Design Considerations

open access: yesAxioms, 2023
Tidal energy represents a clean and sustainable source of energy generation that can address renewable energy challenges, especially the global challenge of optimizing alternatives for stable supply.
Á. M. Rodríguez-Pérez   +3 more
semanticscholar   +1 more source

Tidal Turbine Benchmarking Project: Stage I - Steady Flow Experiments

open access: yesProceedings of the European Wave and Tidal Energy Conference, 2023
The tidal turbine benchmarking project, funded by the UK's EPSRC and the Supergen ORE Hub, has conducted a large laboratory scale experiment on a highly instrumented 1.6m diameter tidal rotor.
S.W. Tucker Harvey   +12 more
semanticscholar   +1 more source

Tidal energy extraction modifies tidal asymmetry and transport in a shallow, well-mixed estuary

open access: yesFrontiers in Marine Science, 2023
Tidal energy extraction is increasingly being studied as a potential renewable energy resource in estuaries worldwide. Although it is understood that energy extraction via tidal stream turbines can modify currents and transport within estuaries, it is ...
Preston Spicer   +4 more
doaj   +1 more source

Design methodology of permanent magnet generators for fixed-pitch tidal turbines with overspeed power limitation strategy

open access: yesJournal of Ocean Engineering and Science, 2020
This paper deals with a design methodology of permanent magnets (PM) generators used for fixed-pitch tidal turbines in a marine renewable energy context.
Sofiane Djebarri   +3 more
doaj   +1 more source

Structural performance of composite tidal turbine blades

open access: yesComposite structures, 2021
Tidal turbine blades experience a significant bending moment in the root area during their long-term operation in a sea water environment. This necessitates using fibre reinforced polymer as the blade material to provide the required strength/stiffness ...
H. Gonabadi, A. Oila, A. Yadav, S. Bull
semanticscholar   +1 more source

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