Results 51 to 60 of about 579,350 (230)

Hydrodynamic Analysis of Tidal Current Turbine under Water-Sediment Conditions

open access: yesJournal of Marine Science and Engineering, 2022
The rivers connecting oceans generally carry sediment due to water and soil losses in China. Additionally, the maximum sediment concentration is 300 g/L, which is much higher than that of other countries.
Yanjing Gao   +4 more
doaj   +1 more source

Assessment of pulsating torque mitigation control strategy through tidal turbine emulation

open access: yesThe Journal of Engineering, 2019
This article presents the modelling and assessment of a pulsating torque mitigation control strategy by using a tidal turbine emulator in a laboratory environment.
Marios Charilaos Sousounis   +2 more
doaj   +1 more source

New Concept for Assessment of Tidal Current Energy in Jiangsu Coast, China

open access: yesAdvances in Mechanical Engineering, 2013
Tidal current energy has attracted more and more attentions of coastal engineers in recent years, mainly due to its advantages of low environmental impact, long-term predictability, and large energy potential.
Ji-Sheng Zhang   +4 more
doaj   +1 more source

Unsteady Reynolds-averaged Navier–Stokes investigation of free surface wave impact on tidal turbine wake

open access: yesProceedings of the Royal Society A, 2021
Tidal current is a promising renewable energy source. Previous studies have investigated the influence of surface waves on tidal turbines in many aspects.
Zhisong Li   +4 more
semanticscholar   +1 more source

Tidal Energy: The benthic effects of an operational tidal stream turbine

open access: yesMarine Environmental Research, 2017
The effect of modified flow on epifaunal boulder reef communities adjacent to the SeaGen, the world's first grid-compliant tidal stream turbine, were assessed. The wake of the SeaGen was modelled and the outputs were used in conjunction with positional and substrate descriptor variables, to relate variation in epifaunal community structure to the ...
J.P.J. O'Carroll   +3 more
openaire   +5 more sources

Numerical simulations of biofouling effects on the tidal turbine hydrodynamic

open access: yesInternational Marine Energy Journal, 2018
Biofouling by benthic organisms must be considered for tidal turbine operation and maintenance because it modifies hydrodynamics (drag and resistance) and could be detrimental to the turbine performance.
A. Rivier   +3 more
doaj   +1 more source

Turbine sound may influence the metamorphosis behaviour of estuarine crab megalopae. [PDF]

open access: yesPLoS ONE, 2012
It is now widely accepted that a shift towards renewable energy production is needed in order to avoid further anthropogenically induced climate change. The ocean provides a largely untapped source of renewable energy.
Matthew K Pine   +2 more
doaj   +1 more source

Optimal power extraction of a two-stage tidal turbine system based on backstepping disturbance rejection control

open access: yes, 2021
This paper investigates the optimal power generation control for a two-stage horizontal-axis tidal turbine system based on backstepping disturbance rejection control (BDRC), which is a new control framework for high-order nonlinear systems.
Xiu-xing Yin, Xiaowei Zhao
semanticscholar   +1 more source

Application of a multibeam echosounder to document changes in animal movement and behaviour around a tidal turbine structure

open access: yesICES Journal of Marine Science, 2021
Changes in animal movement and behaviour at fine scales (tens of metres) in immediate proximity to tidal stream turbine structures are largely unknown and have implications for risks of animal collision with turbine blades.
B. Williamson   +3 more
semanticscholar   +1 more source

An optimal tuning strategy for tidal turbines [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2016
Tuning wind and tidal turbines is critical to maximizing their power output. Adopting a wind turbine tuning strategy of maximizing the output at any given time is shown to be an extremely poor strategy for large arrays of tidal turbines in channels. This ‘impatient-tuning strategy’ results in far lower power output, much higher structural loads and ...
openaire   +2 more sources

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