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tidal turbines

An experimental investigation into non-linear wave loading on horizontal axis tidal turbines

An experimental investigation into non-linear wave loading on horizontal axis tidal turbines

... on tidal turbines through experimental investigation using a 1:15 scale, speed-controlled, ...in tidal channels, waves are likely to oppose the current direction around half the time, and hence are a ...

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Anomaly detection techniques for the condition monitoring of tidal turbines

Anomaly detection techniques for the condition monitoring of tidal turbines

... between tidal and wind power turbine design, the operating environment is vastly ...wind), tidal flow has a much higher kinetic energy compared to wind flow (Winter, ...causes tidal turbines ...

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The characterisation of the hydrodynamic loads on tidal turbines due to turbulence

The characterisation of the hydrodynamic loads on tidal turbines due to turbulence

... regulated turbines in particular, the unsteady, separation-induced loads will not be able to be predicted using the relatively simple transfer function or dynamic-in fl ow models given that they are ...for ...

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Article Dynamic, Fully Coupled, Electro-mechanical Models of Tidal Turbines.

Article Dynamic, Fully Coupled, Electro-mechanical Models of Tidal Turbines.

... hydro-kinetic tidal turbines has many challenges that must to be overcome to ensure reliable, economic and practical ...axis tidal turbine tested in the University of Edinburgh FloWave Ocean Energy ...

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Blade loading on tidal turbines for uniform unsteady flow

Blade loading on tidal turbines for uniform unsteady flow

... The present study has presented a more extensive set of experimental data to quantify the unsteady blade-root bending moment in attached fl ow than has been previously reported for tidal turbines in the ...

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Applying a simple model for estimating the likelihood of collision of marine mammals with tidal turbines

Applying a simple model for estimating the likelihood of collision of marine mammals with tidal turbines

... for tidal turbine arrays that are laid out along channels or in configurations other than the cross-channel placement we have described ...in tidal channels, particularly in the vicinity of deployed and ...

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Assessing the long term performance of tidal turbines subject to biofouling

Assessing the long term performance of tidal turbines subject to biofouling

... available, tidal energy, has many attractive features as a clean energy ...with tidal turbines is their long-term reliability when operating in the hostile marine ...of tidal turbine ...

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The effects of oblique waves and currents on the loadings and performance of tidal turbines

The effects of oblique waves and currents on the loadings and performance of tidal turbines

... of tidal turbines are, in part, the result of load uncertainties, which lead to the use of high factors of safety in the design to ensure ...axis turbines investigating this issue have been carried ...

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Impact angle effects on erosion maps of GFRP : applications to tidal turbines

Impact angle effects on erosion maps of GFRP : applications to tidal turbines

... for tidal and wave energy conversion ...on tidal devices; the materials of interest are primarily polymer-based composite materials that are used to provide structural integrity while reducing ...in ...

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Experimental and CFD analysis of the wake characteristics of tidal turbines

Experimental and CFD analysis of the wake characteristics of tidal turbines

... modelling turbines both in experimental and computational ...wind turbines as documented by ...in tidal turbines both in experiments [2] and using Computational Fluid Dynamics (CFD) techniques ...

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Mapping blade angle effects for the erosion of polymer based composites : an approach to developing smart materials for tidal turbines

Mapping blade angle effects for the erosion of polymer based composites : an approach to developing smart materials for tidal turbines

... for tidal and wave energy conversion devices. For tidal devices, the materials of interest are primarily polymer based composite materials that are used to provide structural integrity while reducing ...in ...

7

Evaluating passive structural control of tidal turbines

Evaluating passive structural control of tidal turbines

... by tidal-stream energy alone ...of tidal turbines tested in the past 10 ...of Tidal Energy Convertors (TEC) are categotized by EMEC [2], which are horizontal axis turbine, vertical axis ...

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Cavitation observations and noise measurements of horizontal axis tidal turbines with biomimetic blade leading-edge designs

Cavitation observations and noise measurements of horizontal axis tidal turbines with biomimetic blade leading-edge designs

... the tidal turbine with a potential reduction in cavitation ...of tidal turbines it was thought to be most interesting to conduct a cavitation and noise test campaign with tidal turbines ...

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Development of an experimental methodology for appraising the dynamic response of tethered tidal turbines

Development of an experimental methodology for appraising the dynamic response of tethered tidal turbines

... As the water depth increases and the environmental conditions become substantially tempes- tuous, the dimensions of the piles must be increased to withstand the overturning moments created by the turbine loads. These ...

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Detailed flow measurement of the field around tidal turbines with and without biomimetic leading-edge tubercles

Detailed flow measurement of the field around tidal turbines with and without biomimetic leading-edge tubercles

... Velocity magnitude distribution for the reference turbine at varied sections, 50mm, 150mm and 250mm downstream of model turbine at TSR4 with the iso-surface of axial velocity = 3.3m/s 44[r] ...

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Development and initial application of a blade design methodology for overspeed power-regulated tidal turbines

Development and initial application of a blade design methodology for overspeed power-regulated tidal turbines

... High voltages in a turbine require thicker electrical insulation, which adds size and mass, increasing deployment costs. High structural loads require stronger, more expensive station-keeping designs; likewise, high ...

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Spanwise flow corrections for tidal turbines

Spanwise flow corrections for tidal turbines

... 0.25) where the aerofoil is blended into a cylinder to facilitate pitching at the blade root. As shown in Fig. 1, Rotor 2 has a greater local chord length and a slightly lower twist angle than Rotor 1 along the entire ...

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A computational design method for bio-mimicked horizontal axis tidal turbines

A computational design method for bio-mimicked horizontal axis tidal turbines

... fluid flow near the turbine blade surfaces; which causes the k-ε model to underestimate the power 262.. coefficient.[r] ...

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Experimental optimisation of power for large arrays of cross-flow tidal turbines

Experimental optimisation of power for large arrays of cross-flow tidal turbines

... 427 For the decreased stream-wise separation Figure 14 the trends are very 428 similar to those in the base-case array, with highest flow velocities being into 429 the middle row of turb[r] ...

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Effect of waves on the leading-edge undulated tidal turbines

Effect of waves on the leading-edge undulated tidal turbines

... 367 368 Figure 17 Amplitudes of torque and thrust in regular waves 369 370 4.4 Wave-current interaction tests in irregular wave tests 371 372 373 374 375 376 377 Having completed the per[r] ...

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