Modelling uncertainty in t-RANS simulations of thermally stratified forest canopy flows for wind energy studies

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energies-11-01703.pdf(7 MB)
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Date
2018
Authors
Desmond, Cian J.
Watson, Simon
Montavon, Christiane
Murphy, Jimmy
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MDPI AG
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Abstract
The flow over densely forested terrain under neutral and non-neutral conditions is considered using commercially available computational fluid dynamics (CFD) software. Results are validated against data from a site in Northeastern France. It is shown that the effects of both neutral and stable atmospheric stratifications can be modelled numerically using state of the art methodologies whilst unstable stratifications will require further consideration. The sensitivity of the numerical model to parameters such as canopy height and canopy density is assessed and it is shown that atmospheric stability is the prevailing source of modelling uncertainty for the study.
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Keywords
Wind energy , Computational fluid dynamics (cfd) , Non-neutral , Forest , Canopy , Site assessment , Vaudeville-le-haut
Citation
Desmond, C., Watson, S., Montavon, C. and Murphy, J. (2018) 'Modelling uncertainty in t-RANS simulations of thermally stratified forest canopy flows for wind energy studies', Energies, 11(7), 1703 (25pp). doi: 10.3390/en11071703