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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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https://doi.org/10.5194/wes-2019-52
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2019-52
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: brief communication 23 Aug 2019

Submitted as: brief communication | 23 Aug 2019

Review status
This discussion paper is a preprint. A revision of the manuscript is under review for the journal Wind Energy Science (WES).

Brief communication: A double Gaussian wake model

Johannes Schreiber, Amr Balbaa, and Carlo L. Bottasso Johannes Schreiber et al.
  • Wind Energy Institute, Technische Universität München, 85748 Garching bei München, Germany

Abstract. In this paper, an analytical wake model with a double Gaussian velocity distribution is presented, improving on a similar formulation by Keane et al. The choice of a double Gaussian shape function is motivated by the behavior of the near wake region, observed in numerical simulations and experimental measurements. The method is based on the conservation of momentum principle, while stream-tube theory is used to determine the wake expansion at the tube outlet. The model is calibrated and validated using large eddy simulations replicating scaled wind turbine experiments. Results show that the tuned double Gaussian model is superior to a single Gaussian formulation in the near wake region.

Johannes Schreiber et al.
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Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Johannes Schreiber et al.
Johannes Schreiber et al.
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Latest update: 22 Nov 2019
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Short summary
An analytical wake model with a double Gaussian velocity distribution is used to improve on a similar formulation by Keane et al. The choice of a double Gaussian shape function is motivated by the behavior of the near wake region, observed in numerical simulations and experimental measurements. The model is calibrated and validated using large eddy simulations replicating scaled wind turbine experiments, yielding improved results with respect to a classical single Gaussian profile.
An analytical wake model with a double Gaussian velocity distribution is used to improve on a...
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