Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/243995 
Year of Publication: 
2020
Citation: 
[Journal:] Energy Reports [ISSN:] 2352-4847 [Volume:] 6 [Issue:] 3 [Publisher:] Elsevier [Place:] Amsterdam [Year:] 2020 [Pages:] 232-255
Publisher: 
Elsevier, Amsterdam
Abstract: 
This paper purpose a numerical study of the flow downstream a wind turbine erected in the neutral atmospheric boundary layer. A first part consists of unsteady wind flow simulations through a full moving rotor, which lets identifying the vortex generated in the wind turbine wake. The governed equations were solved in two sub-domains (Rotor/Stator) and the moved fluid flow continuity at the domain interface was managed by the Sliding Mesh technique of Turbo-machinery implemented in an open-source 'Code _Saturne'. However, the unsteady full rotor calculations proved to be extensive and inadequate for optimizing the wind farm layout. Therefore, to achieve a more accessible wake model, the second part consists of the design of a generalized hybrid wake model in which, contrary to the full simulation, an actuator disc 'with non-zero thicknesses' has substituted the rotor and was coupled to the Reynolds averaged Navier Stokes equations (RANS) through additional source terms. The modified k- was used to model the turbulence developed downstream the rotor. The ability of the proposed model to represent the wake was demonstrated by a series of validations with experimental data and results were in good agreement.
Subjects: 
U-RANS
Sliding Mesh
Generalized actuator volume
CFD
Persistent Identifier of the first edition: 
Creative Commons License: 
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Document Type: 
Article
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