Corpus ID: 111603884

Laboratory scale experiments and preliminary modelling to investigate basin scale tidal stream energy extraction

  title={Laboratory scale experiments and preliminary modelling to investigate basin scale tidal stream energy extraction},
  author={Peter K. Stansby and S. Draper and Stephen Way and Thomas A. A. Adcock and T. Stallard},
This paper summarizes a set of model scale experiments that were undertaken to investigate the momentum deficit imparted by strips of porous discs emulating model scale tidal stream turbine fences. This was undertaken as part of the Energy Technologies Institute PerAWAT project. In the experiments the strips were placed in (1) a uniform model scale tidal channel and (2) a model scale tidal channel containing a headland with sloping sides. Both steady and oscillatory flow experiments were… Expand
The influence of waves on tidal stream turbine arrays
The University of Manchester Alexander Olczak The Influence of Waves on Tidal Stream Turbine Arrays September 2015 The aim of this research was to quantify the influence of waves on arrays of tidalExpand
Implementation of Tidal Stream Turbines and Tidal Barrage Structures in DG-SWEM
There are two approaches to extracting power from tides – either turbines are placed in areas of strong flows or turbines are placed in barrages enabling the two sides of the barrage to be closed offExpand
Local Blockage Effects for Idealised Turbines in Tidal Channels
In this paper, idealised analytical and numerical models are used to explore the potential for local blockage effects to enhance the performance of turbines in tidal channels. Arrays of turbinesExpand
A Note on the Effects of Local Blockage and Dynamic Tuning on Tidal Turbine Performance
Numerical simulations are used to explore the potential for local blockage effects and dynamic tuning strategies to enhance the performance of turbines in tidal channels. Full- and partial-widthExpand
Tidal stream energy resource assessment of the Anglesey Skerries
Abstract Many candidate sites for tidal stream power devices can be classified as headlands. This paper analyses one such site, off Anglesey. In order to investigate the disturbance to the local flowExpand
Characterisation of current and turbulence in the FloWave Ocean Energy Research Facility
Abstract Tidal energy is a developing industry and requires high precision test facilities which replicate the full-scale flows as accurately as possible to develop new technologies. In particular,Expand
Characterising the effect of turbine operating point on momentum extraction of tidal turbine arrays
Due to the predictable nature of the tides, power generation from tidal streams could play a significant role in addressing future power network challenges by providing an auxiliary frequencyExpand
Experimental optimisation of power for large arrays of cross-flow tidal turbines
Abstract As commercial scale tidal energy devices are shortly to be deployed in the first arrays, the knowledge of how different array layouts perform is a key and under-examined field. Here, theExpand
A Comparison of Numerical Modelling Techniques for Tidal Stream Turbine Analysis
To fully understand the performance of tidal stream turbines for the development of ocean renewable energy, a range of computational models is required. We review and compare results from severalExpand
Oscillatory flows around a headland by 3D modelling with hydrostatic pressure and implicit bed shear stress comparing with experiment and depth-averaged modelling
Abstract Tidal flows around headlands with recirculations have long been of environmental importance and are now considered for tidal stream turbine deployment as flow accelerates around a headlandExpand


A free-surface and blockage correction for tidal turbines
The effects of free-surface proximity on the flow field around tidal stream turbines are modelled using actuator disc theory. Theoretical results are presented for a blocked configuration of tidalExpand
Energy potential of a tidal fence deployed near a coastal headland
The power potential of tidal streams near an idealized coastal headland with a sloping seabed is investigated using a near-field approximation to represent a tidal fence, i.e. a row of tidal devices, in a two-dimensional depth-averaged numerical model. Expand
Assessment of tidal current energy in the Minas Passage, Bay of Fundy
Abstract The tidal power available for electricity generation from in-stream turbines placed in the Minas Passage of the Bay of Fundy is examined. A previously derived theory is adapted to model theExpand
Tuning turbines in a tidal channel
  • R. Vennell
  • Environmental Science
  • Journal of Fluid Mechanics
  • 2010
As tidal turbine farms grow they interact with the larger scale flow along a channel by increasing the channel's drag coefficient. This interaction limits a channel's potential to produce power. A 1DExpand
The power potential of tidal currents in channels
  • C. Garrett, P. Cummins
  • Physics
  • Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
  • 2005
Interest in sources of renewable energy has led to increasing attention being paid to the potential of strong tidal currents. There is a limit to the available power, however, as too many turbinesExpand
Tidal dynamics and dispersion around coastal headlands
This thesis concerns the dynamics of ticlal _,cm'rents and tide-induced dispersion around coastal headlands. The depth-averaged shallow water equations forced by a oscilatory xdirected current withExpand
Application of linear momentum actuator disc theory to open channel flow
This report presents a step by step extension of the simple one-dimensional linear momentum actuator disc theory (LMADT), which results in the well known Betz-Lanchester limit for wind turbines, to aExpand
A mixing-length model for shallow turbulent wakes
  • P. Stansby
  • Geology, Physics
  • Journal of Fluid Mechanics
  • 2003
A three-dimensional boundary-layer model of shallow-water flows assuming hydrostatic pressure with negligible numerical diffusion and wave damping has been extended to turbulent flow. A standardExpand
Dynamics of marine sands
Dynamics of marine sands' specifically deals with coastal and offshore sea areas, as well as rivers and estuaries, for sand and gravel sediments. The book presents a convenient and useableExpand
Mixing in Inland and Coastal Waters
Concepts and Definitions. Fickian Diffusion. Turbulent Diffusion. Shear Flow Dispersion. Mixing in Rivers. Mixing in Reservoirs. Mixing in Estuaries. River and Estuary Models. Turbulent Jets andExpand