Physics of Fluids - Publications

Large eddy simulation study of extended wind farms with large inter turbine spacing

Open Access
Journal of Physics: Conference Series 1618, 062011 (2020)

Authors

	Richard Stevens
	Charles Meneveau

BibTeΧ

@article{Stevens_2020,
	doi = {10.1088/1742-6596/1618/6/062011},
	url = {https://doi.org/10.1088%2F1742-6596%2F1618%2F6%2F062011},
	year = 2020,
	month = {sep},
	publisher = {{IOP} Publishing},
	volume = {1618},
	pages = {062011},
	author = {Richard J.A.M. Stevens and Charles Meneveau},
	title = {Large eddy simulation study of extended wind farms with large inter turbine spacing},
	journal = {Journal of Physics: Conference Series},
	abstract = {We study the performance of extended wind farms with very large inter turbine spacings, i.e. with an inter turbine spacing of more than 10 turbine diameters, using large-eddy simulations (LES) for the special case of neutral conditions. We compare the results with predictions from different analytical modeling approaches and discuss in which parameter regimes the different model predictions agree with the LES predictions. We find in LES that the normalized power output variance increases further downstream in the wind farm. Besides, we analyze the power output correlation between the subsequent downstream turbines. We find that the correlations decrease with increasing turbine spacing due to the increased mixing induced by the wind turbine wakes. For all cases considered here, the power output correlation with downstream turbines becomes negligible after about 40 turbine diameters.}
}