dc.contributor.author | Bakhoday Paskyabi, Mostafa | |
dc.contributor.author | Krutova, Maria | |
dc.contributor.author | Nielsen, Finn Gunnar | |
dc.contributor.author | Reuder, Joachim | |
dc.contributor.author | Guernaoui, O. EL. | |
dc.date.accessioned | 2021-08-04T11:37:16Z | |
dc.date.available | 2021-08-04T11:37:16Z | |
dc.date.created | 2020-12-01T12:14:55Z | |
dc.date.issued | 2020 | |
dc.identifier.issn | 1742-6588 | |
dc.identifier.uri | https://hdl.handle.net/11250/2766203 | |
dc.description.abstract | In this paper, the primary objective is to investigate flow structures in the wake of wind turbines based on applying a truncated Proper Orthogonal Decomposition (POD) approach. This scheme decomposes the three-dimensional velocity fields produced by the high-fidelity PArallelized LES Model (PALM) into a number of orthogonal spatial modes and time-dependent weighting coefficients. PALM has been combined with an actuator disk model with rotation to incorporate the effects of a turbine array. The time-dependent deterministic weights from applying the POD scheme are replaced by stochastic weights, estimated from two independent stochastic techniques that aim to account for unresolved small-scale features for a number of POD modes. We then reconstruct the flow field by a small number of stochastic modes to investigate how well the applied stochastic methodologies can reproduce the flow field compared to the original LES results. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | IOP | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | On Stochastic Reduced-Order and LES-based Models of Offshore Wind Turbine Wakes | en_US |
dc.type | Journal article | en_US |
dc.type | Peer reviewed | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.articlenumber | 012018 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.doi | 10.1088/1742-6596/1669/1/012018 | |
dc.identifier.cristin | 1854763 | |
dc.source.journal | Journal of Physics: Conference Series (JPCS) | en_US |
dc.identifier.citation | Journal of Physics: Conference Series (JPCS). 2020, 1669, 012018 | en_US |
dc.source.volume | 1669 | en_US |