Evaluation of an offshore wind farm computational fluid dynamics model against operational site data

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dc.contributor.authorRichmond, Mark
dc.contributor.authorAntoniadis, Antonis F.
dc.contributor.authorWang, Lin
dc.contributor.authorKolios, Athanasios
dc.contributor.authorAl-Sanad, Shaikha A.
dc.contributor.authorParol, Jafarali
dc.date.accessioned2019-12-11T14:51:17Z
dc.date.available2019-12-11T14:51:17Z
dc.date.issued2019-10-31
dc.description.abstractModelling wind turbine wake effects at a range of wind speeds and directions with actuator disk (AD) models can provide insight but also be challenging. With any model it is important to quantify the level of error, but this can also present a challenge when comparing a steady-state model to measurement data with scatter. This paper models wind flow in a wind farm at a range of wind speeds and directions using an AD implementation. The results from these models are compared to data collected from the actual farm being modelled. An extensive comparison is conducted, constituted from 35 cases where two turbulence models, the standard k-ε and k-ω SST are evaluated. The steps taken in building the models as well as processes for comparing the AD computational fluid dynamics (CFD) results to real-world data using the regression models of ensemble bagging and Gaussian process are outlined. Turbine performance data and boundary conditions are determined using the site data. Modifications to an existing opensource AD code are shown so that the predetermined turbine performance can be implemented into the CFD model. Steady state solutions are obtained with the OpenFOAM CFD solver. Results are compared in terms of velocity deficit at the measurement locations. Using the standard k-ε model, a mean absolute error for all cases together of roughly 8% can be achieved, but this error changes for different directions and methods of evaluating it.en_UK
dc.identifier.citationRichmond M, Antoniadis A, Wang L, et al., (2019) Evaluation of an offshore wind farm computational fluid dynamics model against operational site data. Ocean Engineering, Volume 193, December 2019, Article number 106579en_UK
dc.identifier.issn0029-8018
dc.identifier.urihttps://doi.org/10.1016/j.oceaneng.2019.106579
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14825
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectActuator disken_UK
dc.subjectSCADAen_UK
dc.subjectTurbulence modelsen_UK
dc.subjectOffshore wind farmen_UK
dc.subjectSite dataen_UK
dc.subjectCFDen_UK
dc.titleEvaluation of an offshore wind farm computational fluid dynamics model against operational site dataen_UK
dc.typeArticleen_UK

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