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Full rotor modelling and generalized actuator disc for wind turbine wake investigation
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| Published in: | Energy reports 6(2020), 3 vom: Feb., Seite 232-255 |
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| Authors and Corporations: | , , |
| Title: | Full rotor modelling and generalized actuator disc for wind turbine wake investigation/ H. Daaou Nedjari, O. Guerri, M. Saighi |
| Type of Resource: | E-Book Component Part |
| Language: | English |
| published: |
2020
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| Series: |
: Energy reports, 6(2020), 3 vom: Feb., Seite 232-255
, volume:6 |
| Subjects: | |
| Source: | Verbunddaten SWB Lizenzfreie Online-Ressourcen |
| 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. |
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| ISSN: |
2352-4847
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| DOI: | 10.1016/j.egyr.2019.10.041 |
| Access: | Open Access |