at Google ScholarTitle data
Wilczek, Michael ; Stevens, Richard J. A. M. ; Narita, Yasuhito ; Meneveau, Charles:
A wavenumber-frequency spectral model for atmospheric boundary layers.
In: Journal of Physics: Conference Series.
Vol. 524
(2014)
.
- No. 012104.
ISSN 1742-6596
DOI: https://doi.org/10.1088/1742-6596/524/1/012104
Abstract in another language
Motivated by the need to characterize power fluctuations in wind farms, we study spatio-temporal correlations of a neutral atmospheric boundary layer in terms of the joint wavenumber-frequency spectrum of the streamwise velocity fluctuations. To this end, we perform a theoretical analysis of a simple advection model featuring the advection of small-scale velocity fluctuations by the mean flow and large-scale velocity fluctuations. The model is compared to data from large-eddy simulations (LES). We find that the model captures the trends observed in LES, specifically a Doppler shift of frequencies due to the mean flow as well as a Doppler broadening due to random sweeping effects.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics I > Chair Theoretical Physics I - Univ.-Prof. Dr. Michael Wilczek Profile Fields > Advanced Fields > Nonlinear Dynamics Faculties Faculties > Faculty of Mathematics, Physics und Computer Science Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Chair Theoretical Physics I Profile Fields Profile Fields > Advanced Fields |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science > 530 Physics |
| Date Deposited: | 23 Feb 2022 11:05 |
| Last Modified: | 23 Feb 2022 11:05 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/67582 |