Computational aeroacoustic simulations of small vertical axis wind turbine

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Weber J, Regensburger C, Tautz M, Becker S, Hüppe A, Kaltenbacher M
Publisher: German Acoustical Society (DEGA)
Publication year: 2016
Pages range: 7837-7845


Abstract


Reducing the noise of wind turbines, which are installed in the vicinity of urban areas, is one major issue for social acceptance. In general, horizontal wind turbines are the most common configuration for using wind energy. However, the interest of small wind turbines are grown in the last years because of the future demand for decentralized power generation. The present work deals with two different numerical schemes of noise prediction of small vertical axis wind turbines using hybrid methods. For both schemes the time-dependent turbulent flow field is solved with Scale-Adaptive Simulation. The two schemes then differ in how the location of the acoustic sources and their propagation is calculated. In the first scheme the Ffowcs-Williams Hawkings method is used which is based on a free field Green's function. The far field acoustic radiation is calculated by extrapolation of the acoustic waves. In the second scheme the acoustic source terms are computed according to Perturbed Convective Wave Equations, which gives source terms located on the original CFD grid. These source terms are projected onto a coarser acoustic grid on which the propagation is calculated by solving the wave equation. Both methodologies are compared with each other and validated with experimental data.



FAU Authors / FAU Editors

Becker, Stefan Prof. Dr.
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Tautz, Matthias
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Weber, Johannes
Lehrstuhl für Prozessmaschinen und Anlagentechnik


How to cite

APA:
Weber, J., Regensburger, C., Tautz, M., Becker, S., Hüppe, A., & Kaltenbacher, M. (2016). Computational aeroacoustic simulations of small vertical axis wind turbine. (pp. 7837-7845). Hamburg, DE: German Acoustical Society (DEGA).

MLA:
Weber, Johannes, et al. "Computational aeroacoustic simulations of small vertical axis wind turbine." Proceedings of the 45th International Congress and Exposition on Noise Control Engineering: Towards a Quieter Future, INTER-NOISE 2016, Hamburg German Acoustical Society (DEGA), 2016. 7837-7845.

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Last updated on 2018-19-04 at 03:44