Experimental analysis of the dynamic  inflow effect due to coherent gusts

Berger, Frederik; Neuhaus, Lars; Onnen, David; Hölling, Michael; Schepers, Gerard; Kühn, Martin

doi:https://doi.org/10.5194/wes-7-1827-2022

Articles | Volume 7, issue 5

https://doi.org/10.5194/wes-7-1827-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/wes-7-1827-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 7, issue 5

Research article

|

08 Sep 2022

Research article |

| 08 Sep 2022

Experimental analysis of the dynamic inflow effect due to coherent gusts

Frederik Berger, Lars Neuhaus, David Onnen, Michael Hölling, Gerard Schepers, and Martin Kühn

Data sets

Dataset - Experimental analysis of the dynamic inflow effect due to coherent gusts F. Berger, L. Neuhaus, D. Onnen, M. Hölling, G. Schepers, and M. Kühn https://doi.org/10.5281/zenodo.7007934

Dataset - Radially resolved dynamic inflow pitch step experiment in wind tunnel F. Berger, D. Onnen, C. Schepers, and M. Kühn https://doi.org/10.5281/zenodo.5552171

Model code and software

QBlade QBlade https://sourceforge.net/projects/qblade

Short summary

We proof the dynamic inflow effect due to gusts in wind tunnel experiments with MoWiTO 1.8 in the large wind tunnel of ForWind – University of Oldenburg, where we created coherent gusts with an active grid. The effect is isolated in loads and rotor flow by comparison of a quasi-steady and a dynamic case. The observed effect is not caught by common dynamic inflow engineering models. An improvement to the Øye dynamic inflow model is proposed, matching experiment and corresponding FVWM simulations.