The Explicit Wake Parametrisation V1.0: a wind farm parametrisation in the mesoscale model WRF

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Abstract

We describe the theoretical basis, implementation and validation of a new parametrisation that accounts for the eect of large oshore wind farms on the atmosphere and can be used in mesoscale and large-scale atmospheric models. This new parametrisation, referred to as the Explicit Wake Parametrisation (EWP), uses classical wake theory to describe the unresolved wake expansion. The EWP scheme is validated against filtered in situ measurements from two meteorological masts situated a few kilometres away from the Danish oshore wind farm Horns Rev I. The simulated velocity deficit in the wake of the wind farm compares well to that observed in the measurements and the velocity profile is qualitatively similar to that simulated with large eddy simulation models and from wind tunnel studies. At the same time, the validation process highlights the challenges in verifying such models with real observations.
Original languageEnglish
JournalGeoscientific Model Development
Volume8
Pages (from-to)3715–3731
ISSN1991-959X
DOIs
Publication statusPublished - 2015

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© Author(s) 2015. CC Attribution 3.0 License.

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