at Google ScholarTitle data
Wilczek, Michael ; Stevens, Richard J. A. M. ; Meneveau, Charles:
Height-dependence of spatio-temporal spectra of wall-bounded turbulence : LES results and model predictions.
In: Journal of Turbulence.
Vol. 16
(2015)
Issue 10
.
- pp. 937-949.
ISSN 1468-5248
DOI: https://doi.org/10.1080/14685248.2015.1047497
Abstract in another language
Wavenumber–frequency spectra of the streamwise velocity component obtained from large-eddy simulations (LES) are presented. Following recent work we show that the main features, a Doppler shift and a Doppler broadening of frequencies, are captured by an advection model based on the Tennekes–Kraichnan random-sweeping hypothesis with additional mean flow. In this paper, we focus on the height-dependence of the spectra within the logarithmic layer of the flow. We furthermore benchmark an analytical model spectrum that takes the predictions of the random-sweeping model as a starting point and find good agreement with the LES data. We also quantify the influence of the LES grid resolution on the wavenumber–frequency spectra.
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: | 18 Feb 2022 12:45 |
| Last Modified: | 18 Feb 2022 12:45 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/67615 |