A dynamic stall model for analysis of cross-flow turbines using discrete vortex methods

Urbina, Raul; Epps, Brenden P.; Peterson, Michael; Kimball, Richard

doi:10.1016/j.renene.2018.07.153

Cited by 6 publications

(3 citation statements)

References 7 publications

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“…However, post analysis of the experimental data has shown that end-plates have a negative influence on the rotor efficiency (see Table I). This conclusion regarding the losses associated with end-plates is in agreement with the results obtained from experimental tests and numerical simulations of cross-flow turbines in a mean flow [38].…”

Section: A Analysis Of Optimal Conditions For Power Productionsupporting

confidence: 90%

Experimental evaluation of phase and velocity control for a cyclorotor wave energy converter

Ermakov,

Thiebaut,

Ringwood

2023

Proc. EWTEC

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The research presented in the paper is dedicated to the analysis of the 3D experimental testing results of a 1:20 scale prototype LiftWEC cyclorotor wave energy converter (WEC). The scaled prototype was built and tested in the Hydraulic and Offshore Engineering wave Tank (HOET) by Ecole Centrale Nantes (ECN) in 2022. The analysis is conducted using the analytical control-oriented point-vortex model. The presented research covers a range of tests, with particular focus on cases where positive mechanical power generation has been recorded. The analysis of such cases is important, in highlighting the conditions needed for optimum energy conversion, for future development of cyclorotor WEC technology. The study also reviews the results of tests where the rotor rotational speed is varied within each period of monochromatic waves. This is the first experimental test of such a control strategy for cyclorotor WECs.

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Section: A Analysis Of Optimal Conditions For Power Productionsupporting

confidence: 90%

Experimental evaluation of phase and velocity control for a cyclorotor wave energy converter

Ermakov,

Thiebaut,

Ringwood

2023

Proc. EWTEC

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“…In the Taguchi method, the goal is to find the optimum combination of controlling factors. In this study, four standard factors which have significant effects on the hydrodynamic performance of vertical turbines [51][52][53][54][55][56] are chosen, including twist angle (A), camber position (B), maximum camber (C), and chord/radius ratio (D).…”

Section: Initial Design Cfd Modelling and Validationmentioning

confidence: 99%

Optimization of the hydrodynamic performance of a vertical Axis tidal (VAT) turbine using CFD-Taguchi approach

Khanjanpour

2020

Energy Conversion and Management

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“…The hydrodynamic performances depend on 3 factors: tip-speed ratio, solidity, and Reynolds number. Some studies showed that there are many approaches to evaluate and predict the hydrodynamic performance of HKT: the vortex method (Urbina et al., 2019), the computational dynamics method CFD (Kolekar and Banerjee, 2015; Mannion et al., 2019; Zhou et al., 2019), and also the most used approach is Blade Element Momentum Theory BEMT for optimizing the hydrokinetic blade (Chaudhary and Prakash, 2019; Elgammi et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Marine current energy assessment and the hydrodynamic design of the hydrokinetic turbine for the Moroccan Mediterranean Coast

Hazim

Salih

Janan

et al. 2021

Energy Exploration & Exploitation

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Generating electricity through renewable energies is growing increasingly to reduce the huge demand on electricity and the impact of fossil energies on the environment, the most common sources forms used are: the wind, the sun, the photovoltaic and the thermal, without forgetting hydropower by the bays of dams. Fortunately, 70% of our planet is covered by the seas and oceans, this area constitutes a huge potential for electricity production to be exploited. The scientific advances of recent years allow a better exploitation of these resources especially the marine current due to its reliability and predictability. The marine current energy is extracted using a hydrokinetic turbine (HKT) which transform the kinetic energy of water into an electrical energy. The exploitation of this resource needs in the first step the assessment of marine currents in the study area for implementing the HKT, and the second step is designing an adequate technology. The main goal of this study is the assessment of the marine current resource on the Moroccan Mediterranean coast to evaluate the suitable area to implement the HKT, and to determine the marine current speed intensities at different depths. As well as, to estimate an average potential existing in the site. Moreover, we will conduct a study based on the results of the assessment that was made to design a horizontal axis marine current turbine (HAMCT). Two hydrofoil profile were considered to design a HAMCT using the Blade Element Theory (BEM) and calculating their performances adapted to the site conditions Naca4415 and s8052. In addition, a comparison was made between this two HAMCT hydrofoil profile for deciding the best one for implementing in the studied area.

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A dynamic stall model for analysis of cross-flow turbines using discrete vortex methods

Cited by 6 publications

References 7 publications

Experimental evaluation of phase and velocity control for a cyclorotor wave energy converter

Experimental evaluation of phase and velocity control for a cyclorotor wave energy converter

Optimization of the hydrodynamic performance of a vertical Axis tidal (VAT) turbine using CFD-Taguchi approach

Marine current energy assessment and the hydrodynamic design of the hydrokinetic turbine for the Moroccan Mediterranean Coast

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