2018
DOI: 10.3390/en11020297
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Abstract: This study deals with the three-dimensional unsteady numerical simulation of the flow around a cross-flow vertical-axis water turbine (CFWT) of the Darrieus type. The influence of turbine design on its hydrodynamic characteristics and performance is investigated by means of a time-accurate Reynolds Averaged Navier Stokes (RANS) commercial solver. The flow unsteadiness is described using a transient rotor-stator model in connection with a sliding interface. A classical Darrieus straight blade turbine, based on … Show more

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Cited by 23 publications
(19 citation statements)
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“…The turbulent features of the flow are modelled by the transition shear stress transport model (transition SST) of Menter [41,42] which includes the effects of laminar to turbulent transition of the boundary layer on the turbine performance. This model has been employed previously in the simulation of the flow around vertical turbines [25,27,40,43] showing good comparison with experiments. Further details about the advantages of using this turbulence model on the CFWT configuration can be found in [3,27].…”
Section: Turbine Configuration and Simulation Set-upmentioning
confidence: 98%
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“…The turbulent features of the flow are modelled by the transition shear stress transport model (transition SST) of Menter [41,42] which includes the effects of laminar to turbulent transition of the boundary layer on the turbine performance. This model has been employed previously in the simulation of the flow around vertical turbines [25,27,40,43] showing good comparison with experiments. Further details about the advantages of using this turbulence model on the CFWT configuration can be found in [3,27].…”
Section: Turbine Configuration and Simulation Set-upmentioning
confidence: 98%
“…Here, Ω is the blade rotational speed, R the turbine radius and V ∞ the incoming fluid velocity. In this study, the three-dimensional CFD simulations do not include the supporting structure or the shaft as in [1,27]. Moreover, in order to maintain affordable computational time only half of the blades span has been simulated, employing a symmetry boundary condition.…”
Section: Turbine Configuration and Simulation Set-upmentioning
confidence: 99%
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