First characterization of a new perturbation  system for gust generation: the chopper

Neunaber, Ingrid; Braud, Caroline

doi:https://doi.org/10.5194/wes-5-759-2020

Articles | Volume 5, issue 2

https://doi.org/10.5194/wes-5-759-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Wind Energy Science Conference 2019

https://doi.org/10.5194/wes-5-759-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 5, issue 2

Research article

|

18 Jun 2020

Research article |

| 18 Jun 2020

First characterization of a new perturbation system for gust generation: the chopper

Ingrid Neunaber and Caroline Braud

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Final revised paper (published on 18 Jun 2020)
Preprint (discussion started on 10 Jan 2020)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review of "Characterization of a new perturbation system for gust generation: The Chopper"', Anonymous Referee #1, 04 Feb 2020
RC2: 'Comment on "Characterization of a new pertubation system for gust generation: The Chopper"', Anonymous Referee #2, 04 Feb 2020
RC3: ''Review of "Characterization of a new perturbation system for gust generation: The Chopper"', Anonymous Referee #3, 07 Feb 2020
AC1: 'Response to Reviewers', Ingrid Neunaber, 25 Mar 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Ingrid Neunaber on behalf of the Authors (28 Mar 2020) Manuscript

ED: Publish subject to technical corrections (04 May 2020) by Katherine Dykes

ED: Publish subject to technical corrections (10 May 2020) by Joachim Peinke (Chief editor)

AR by Ingrid Neunaber on behalf of the Authors (19 May 2020) Author's response Manuscript

Short summary

Motivated by the need for wind turbine rotor blade tests in flows with atmospheric-like properties like gusts, we present a new setup to generate strong, rapid, turbulent gusts in a wind tunnel. The setup consists of a rotating bar that cuts through the inlet of the wind tunnel which generates the gust, and it is called the chopper. In this work, the flow generated by the chopper is characterized, and we show how the gust and its turbulence evolve downstream.