Relevant bibliographies by topics / Cross-Flow tidal turbine

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Cross-Flow tidal turbine'

Author: Grafiati
Published: 15 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Cross-Flow tidal turbine"

1

VENNELL, ROSS. "Tuning turbines in a tidal channel." Journal of Fluid Mechanics 663 (October 12, 2010): 253–67. http://dx.doi.org/10.1017/s0022112010003502.

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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 1D model for a tidal channel is combined with a theory for turbines in a channel to show that the tuning of the flow through the turbines and the density of turbines in a channel's cross-section also interact with the larger scale flow, via the drag coefficient, to determine the power available for production. To maximise turbine efficiency, i.e. the power available per turbine, farms must occupy the
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Vogel, C. R., and R. H. J. Willden. "Designing multi-rotor tidal turbine fences." International Marine Energy Journal 1, no. 1 (Aug) (2018): 61–70. http://dx.doi.org/10.36688/imej.1.61-70.

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An embedded Reynolds-Averaged Navier-Stokes blade element actuator disk model is used to investigate the hydrodynamic design of tidal turbines and their performance in a closely spaced cross-stream fence. Turbines designed for confined flows are found to require a larger blade solidity ratio than current turbine design practices imply in order to maximise power. Generally, maximum power can be increased by operating turbines in more confined flows than they were designed for, although this also requires the turbines to operate at a higher rotational speed, which may increase the likelihood of
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GARRETT, CHRIS, and PATRICK CUMMINS. "The efficiency of a turbine in a tidal channel." Journal of Fluid Mechanics 588 (September 24, 2007): 243–51. http://dx.doi.org/10.1017/s0022112007007781.

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There is an upper bound to the amount of power that can be generated by turbines in tidal channels as too many turbines merely block the flow. One condition for achievement of the upper bound is that the turbines are deployed uniformly across the channel, with all the flow through them, but this may interfere with other uses of the channel. An isolated turbine is more effective in a channel than in an unbounded flow, but the current downstream is non-uniform between the wake of the turbines and the free stream. Hence some energy is lost when these streams merge, as may occur in a long channel.
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VENNELL, ROSS. "Tuning tidal turbines in-concert to maximise farm efficiency." Journal of Fluid Mechanics 671 (March 7, 2011): 587–604. http://dx.doi.org/10.1017/s0022112010006191.

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Tuning is essential to maximise the output of turbines extracting power from tidal currents. To realise a large fraction of a narrow channel's potential, rows of turbines not only have to be tuned for a particular tidal channel, they must also be tuned in the presence of all the other rows, i.e. ‘tuned in-concert’. The necessity for in-concert tuning to maximise farm efficiency occurs because the tuning of any one row affects a channel's total drag coefficient and hence the flow through all other rows. Surprisingly, in several circumstances the optimal in-concert tunings are the same or almost
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Hoerner, Stefan, Iring Kösters, Laure Vignal, et al. "Cross-Flow Tidal Turbines with Highly Flexible Blades—Experimental Flow Field Investigations at Strong Fluid–Structure Interactions." Energies 14, no. 4 (2021): 797. http://dx.doi.org/10.3390/en14040797.

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Oscillating hydrofoils were installed in a water tunnel as a surrogate model for a hydrokinetic cross-flow tidal turbine, enabling the study of the effect of flexible blades on the performance of those devices with high ecological potential. The study focuses on a single tip-speed ratio (equal to 2), the key non-dimensional parameter describing the operating point, and solidity (equal to 1.5), quantifying the robustness of the turbine shape. Both parameters are standard values for cross-flow tidal turbines. Those lead to highly dynamic characteristics in the flow field dominated by dynamic sta
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Draper, S., T. Nishino, T. A. A. Adcock, and P. H. Taylor. "Performance of an ideal turbine in an inviscid shear flow." Journal of Fluid Mechanics 796 (April 28, 2016): 86–112. http://dx.doi.org/10.1017/jfm.2016.247.

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Although wind and tidal turbines operate in turbulent shear flow, most theoretical results concerning turbine performance, such as the well-known Betz limit, assume the upstream velocity profile is uniform. To improve on these existing results we extend the classical actuator disc model in this paper to investigate the performance of an ideal turbine in steady, inviscid shear flow. The model is developed on the assumption that there is negligible lateral interaction in the flow passing through the disc and that the actuator applies a uniform resistance across its area. With these assumptions,
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Bennecke, Timo, Shokoofeh Abbaszadeh, Karla Ruiz-Hussmann, et al. "Methodology to capture the single blade loads on a cross-flow tidal turbine flume model." International Marine Energy Journal 8, no. 2 (2025): 197–206. https://doi.org/10.36688/imej.8.197-206.

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The OPTIDE project aims to improve the efficiency and durability of hydrokinetic cross-flow tidal turbines (CFTT). CFTT are attractive for the exploitation of tidal energy, because of high area-based power densities of such turbine arrays, a simple design and the ability to operate under varying flow conditions.Nevertheless, the efficiency of single CFTT is lower relative to the most commonly used axial turbine type. Furthermore the life time is often limited due to alternating and pulsating stresses.A promising approach to overcome these drawbacks is intracycle blade pitching. In this case th
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Ruiz-Hussmann, Karla, Pierre-Luc Delafin, Cyrille Bonamy, Yves Delannoy, Dominique Thévenin, and Stefan Hoerner. "Objective Functions for the Blade Shape Optimisation of a Cross-Flow Tidal Turbine under Constraints." International Marine Energy Journal 8, no. 1 (2025): 47–55. https://doi.org/10.36688/imej.8.47-55.

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Hydro-kinetic cross-flow tidal turbines (CFTT) are omni-directional and offer higher area-based power density compared to horizontal-axis tidal turbines, making them very attractive for tidal energy exploitation. However, the rotating motion around the vertical axis results in continuously varying angles of attack, causing alternating loads, which may lead to fatigue failure and structural damage. The OPTIDE Project addresses these challenges by implementing intracycle blade pitching to individually control the angle of attack, increasing the power coefficient CP and reducing structural loads.
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Nishino, Takafumi, and Richard H. J. Willden. "The efficiency of an array of tidal turbines partially blocking a wide channel." Journal of Fluid Mechanics 708 (August 20, 2012): 596–606. http://dx.doi.org/10.1017/jfm.2012.349.

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AbstractA new theoretical model is proposed to explore the efficiency of a long array of tidal turbines partially blocking a wide channel cross-section. An idea of scale separation is introduced between the flow around each device (or turbine) and that around the entire array to assume that all device-scale flow events, including ‘far-wake’ mixing behind each device, take place much faster than the horizontal expansion of the flow around the entire array. This assumption makes it possible to model the flow as a combination of two quasi-inviscid problems of different scales, in both of which th
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Rahmani, Hamid, Mojtaba Biglari, Mohammad Sadegh Valipour, and Kamran Lari. "Assessment of the numerical and experimental performance of screw tidal turbines." Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy 232, no. 7 (2018): 912–25. http://dx.doi.org/10.1177/0957650917753778.

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This study was aimed at the numerical and experimental modeling of water flow during collision between water and vertical screw turbine blades with different cross sections (i.e. Darrieus, spoon, and airfoil). ANSYS Fluent was used to model water flow under tidal currents in a flume, and mesh independence was ensured after the selection of appropriate geometry. The collision problem was then solved in the transient state, and results on the momentum and power generated by different inlet velocities and different blade cross sections were analyzed. The findings showed that torque and turbine po
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Dissertations / Theses on the topic "Cross-Flow tidal turbine"

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Consul, Claudio Antonio. "Hydrodynamic analysis of a tidal cross-flow turbine." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:0f9c201f-882d-4f44-b4c6-96f7658b1621.

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This study presents a numerical investigation of a generic horizontal axis cross-flow marine turbine. The numerical tool used is the commercial Computational Fluid Dynamics package ANSYS FLUENT 12.0. The numerical model, using the SST k-w turbulence model, is validated against static, dynamic pitching blade and rotating turbine data. The work embodies two main investigations. The first is concerned with the influence of turbine solidity (ratio of net blade chord to circumference) on turbine performance, and the second with the influence of blockage (ratio of device frontal area to channel cros
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Stringer, Robert. "Numerical investigation of cross-flow tidal turbine hydrodynamics." Thesis, University of Bath, 2018. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760981.

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The challenge of tackling global climate change and our increasing reliance on power means that new and diverse renewable energy generation technologies are a necessity for the future. From a number of technologies reviewed at the outset, the cross-flow tidal turbine was chosen as the focus of the research. The numerical investigation begins by choosing to model flow around a circular cylinder as a challenging benchmarking and evaluation case to compare two potential solvers for the ongoing research, ANSYS CFX and OpenFOAM. A number of meshing strategies and solver limitations are extracted, f
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Moreau, Martin. "Comportement d'une hydrolienne carénée à double axe vertical dans une diversité de conditions d'écoulement en mer et en bassin d'essais." Electronic Thesis or Diss., Université de Lille (2022-....), 2023. http://www.theses.fr/2023ULILN028.

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Limiter le réchauffement climatique nécessite, entre autres adaptations, une réduction substantielle de l'utilisation des énergies fossiles et une électrification généralisée basée sur des systèmes de production faiblement émetteurs de gaz à effet de serre. Dans ce contexte, l'exploitation de l'énergie des courants de marée et autres énergies marines renouvelables gagne en intérêt. Ainsi, la dernière décennie a vu les premiers essais en mer de plusieurs concepts d'hydroliennes. Parmi eux, la première hydrolienne carénée à double axe vertical de 1 mégawatt, développée par HydroQuest, a été test
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Garcia-Oliva, Miriam. "The impact of tidal stream farms on flood risk in estuaries." Thesis, University of Exeter, 2016. http://hdl.handle.net/10871/22972.

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There is a growing interest in tidal energy, owing to its predictable nature in comparison to other renewable sources. In the case of the UK, its importance also lies on the availability of exploitable areas as well as their total capacity, which is estimated to cover more than 20% of the country demand. However, the level of development of this kind of technology is still far behind other types of renewable energy. However, several studies focused on a variety of individual devices, followed by more recent research on the deployment of large arrays or tidal farms. Potential sites for energy e
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Ferrer, Esteban. "A high order Discontinuous Galerkin - Fourier incompressible 3D Navier-Stokes solver with rotating sliding meshes for simulating cross-flow turbines." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:db8fe6e3-25d0-4f6a-be1b-6cde7832296d.

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This thesis details the development, verification and validation of an unsteady unstructured high order (≥ 3) h/p Discontinuous Galerkin - Fourier solver for the incompressible Navier-Stokes equations on static and rotating meshes in two and three dimensions. This general purpose solver is used to provide insight into cross-flow (wind or tidal) turbine physical phenomena. Simulation of this type of turbine for renewable energy generation needs to account for the rotational motion of the blades with respect to the fixed environment. This rotational motion implies azimuthal changes in blade aero
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Book chapters on the topic "Cross-Flow tidal turbine"

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Ferrer, Esteban, and Soledad Le Clainche. "Simple Models for Cross Flow Turbines." In Recent Advances in CFD for Wind and Tidal Offshore Turbines. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-11887-7_1.

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Gaba, Vivek Kumar, and Shubhankar Bhowmick. "A CFD-based study of cross-flow turbine for tidal energy extraction." In Sustainable Engineering Products and Manufacturing Technologies. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-816564-5.00007-4.

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Furukawa, Akinori, and Kusuo Okuma. "On Applicability of Darrieus-type Cross Flow Water Turbine for Abandoned Hydro and Tidal Powers." In World Renewable Energy Congress VI. Elsevier, 2000. http://dx.doi.org/10.1016/b978-008043865-8/50577-8.

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Conference papers on the topic "Cross-Flow tidal turbine"

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Bates, Patrick, Jerod Ketchum, Richard Kimball, and Michael Peterson. "Experimental Characterization of High Solidity Cross-Flow and Axial Flow Tidal Turbines." In SNAME 29th American Towing Tank Conference. SNAME, 2010. http://dx.doi.org/10.5957/attc-2010-033.

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This paper outlines the experimental testing of high solidity cross-flow type hydrokinetic turbines in the towing tank at the University of Maine and axial flow turbines tested at MIT. These turbines are being developed for commercial scale tidal energy production at megawatt scale tidal energy sites. Details of the testing apparatus, experimental methods, instrumentation and data are presented. Hydrokinetic turbines extract the kinetic energy of a flowing stream and therefore differ from the more conventional head based hydroelectric turbine systems. Hydrokinetic energy farms have more resemb
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Zhao, Ruiwen, Angus C. W. Creech, Alistair G. L. Borthwick, Takafumi Nishino, and Vengatesan Venugopal. "Numerical Model of a Vertical-Axis Cross-Flow Tidal Turbine." In ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/omae2020-18514.

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Abstract An array of close-packed contra-rotating cross-flow vertical-axis tidal rotors, a concept developed to maximize the fraction of flow passage swept, has potential advantages for hydrokinetic power generation. To predict the commercial feasibility of such rotors in large-scale application, a numerical model of a vertical-axis turbine (VAT) with a torque-controlled system is developed using an actuator line model (ALM). The open-source OpenFOAM computational fluid dynamics (CFD) code is first coupled with this ALM model, and efficiently parallelized to examine the characteristics of turb
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Walsh, G. P., R. Keough, V. Mullaley, H. Sinclair, and M. J. Hinchey. "Cross-flow helical turbine for energy production in reversing tidal and ocean currents." In OCEANS 2014. IEEE, 2014. http://dx.doi.org/10.1109/oceans.2014.7003267.

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Polagye, Brian L., Robert J. Cavagnaro, and Adam L. Niblick. "Micropower From Tidal Turbines." In ASME 2013 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fedsm2013-16604.

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In addition to utility-scale power generation (e.g., rated capacities greater than 106 W), there are also possibilities for tidal current generation at the micro-scale (e.g., rated capacities less than 102 W) that could provide power to autonomous oceanographic instrumentation. This paper presents performance characteristics of a high-solidity, helical, cross-flow turbine rotor for a tidal current micropower system. Studies are conducted on a 1/4-scale turbine in a laboratory flume and a full-scale turbine prototype using open-water tows. Results suggest this type of turbine rotor can achieve
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Johnston, Alex, and Martin Wosnik. "Analytical and Numerical Modeling of Performance Characteristics of Cross-Flow Axis Hydrokinetic Turbines." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-07021.

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A model for cross-flow axis hydrokinetic turbines based on blade element theory (BET) was developed. The model combines an extensive experimental and numerical high Reynolds number data set for symmetric airfoils with governing equations to predict performance characteristics of the turbines. The model allows for any number of turbine blades and for variable hydrofoil sweep angles; both straight blade (H-Darrieus) and helical blade (Gorlov) cross-flow axis turbines are modeled. In this model the free stream velocity and the turbine’s rate of rotation are not coupled hydrodynamically, and exper
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Hosseini, Arian, and Navid Goudarzi. "CFD Analysis of a Cross-Flow Turbine for Wind and Hydrokinetic Applications." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88469.

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Tidal current and wind energies have become dominant sources of renewable energies in the modern culture. In this work, the aerodynamic characteristics of a novel hybrid vertical axis turbine (VAT) have been studied in flow fields of water and air using CFD analyses. A parametric study was conducted on the hybrid rotor design with the goal of optimizing the solidity ratio to cover a wide operation range, increase initial torque and maintain high coefficient of power values. The hybrid turbine design with a solidity ratio of 0.5 demonstrated improvements to the self-startup feature and achieved
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Schnabl, Andrea M., Tulio Marcondes Moreira, Dylan Wood, et al. "Implementation of Tidal Stream Turbines and Tidal Barrage Structures in DG-SWEM." In ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/omae2019-95767.

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Abstract 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 off and a head to build up across the barrage. Both of these energy extraction approaches will have a significant back effect on the flow, and it is vital that this is correctly modelled in any numerical simulation of tidal hydrodynamics. This paper presents the inclusion of both tidal stream turbines and tidal barrages in the depth-averaged shallow water equation model DG-SWEM. We represent
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Karsten, Richard. "An Assessment of the Potential of Tidal Power From Minas Passage, Bay of Fundy, Using Three-Dimensional Models." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49249.

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Large tidal currents exist in Minas Passage, which connects Minas Basin to the Bay of Fundy off the northwestern coast of Nova Scotia. The strong currents through this deep, narrow channel make it a promising location for the generation of electrical power using instream turbines. These strong currents are clearly illustrated in the results of a high-resolution, three-dimensional model of the flow through Minas Passage presented here. The simulations also clearly indicate the asymmetry of the flood and ebb tides and the 3D structure of the flow. A previous study has indicated that as much as 7
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Shimizu, Seiji, Masayuki Fujii, Tetsuya Sumida, et al. "Starting System for Darrieus Water Turbine of Tidal Stream Electricity Generation." In ASME 2016 35th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/omae2016-55143.

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Darrieus type vertical axis water turbine in a cylindrical shape which consists of some straight blades is simple, efficient and easy to install a generator upward. However, it has difficulty in starting revolution. As a method to cope with such a problem, a starting revolution assist mechanism was fabricated and set on a prototype of the turbine. Assist experiment was carried out. It resulted helping well the starting revolution. The improved prototype of tidal stream turbine can generate 1.4 W under a water flow of 1 m/s where impossible to self-start. Besides that, Darrieus water turbine’s
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Gorlov, Alexander M. "The Helical Turbine and Its Applications for Hydropower Without Dams." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-33193.

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The objective of this paper is to introduce an environmentally friendly Helical Turbine that has been developed to operate in free or ultra low-head water currents without dams. The turbine is a cross flow unidirectional rotation machine that makes it particularly valuable for ocean applications, such as reversible tidal streams in ocean bays, estuaries and canals, streams in open ocean, underwater currents generated by wave fluctuations etc.
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