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Sharma, Sparsh und Suryadi, Alexandre und Herr, Michaela (2026) Characterizing Airflow Turbulence in the Acoustic Wind Tunnel Braunschweig (AWB) Using Turbulence Grids. In: New Results in Numerical and Experimental Fluid Mechanics XV Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 156 (1). Springer Cham. Seiten 447-456. doi: 10.1007/978-3-032-11115-9_41. ISBN 978-3-032-11115-9.
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Offizielle URL: https://link.springer.com/chapter/10.1007/978-3-032-11115-9_41
Kurzfassung
This study investigates the impact of turbulence grid configurations on generating controlled inflow turbulence in the Acoustic Wind Tunnel Braunschweig (AWB). Turbulence grids of varying bar sizes and spacings were used, allowing an analysis of the resulting turbulence intensities and flow characteristics over a range of turbulence levels and Reynolds numbers. The present study combines high-resolution Large Eddy Simulations (LES) with cross-wire velocity measurements to characterize the turbulence intensity and isotropy downstream of the grid and around an airfoil section. Findings highlight the influence of grid design on turbulence structure, with denser grids producing more isotropic turbulence, whereas sparser grids produce anisotropy.
| elib-URL des Eintrags: | https://elib.dlr.de/223170/ | ||||||||||||||||||||||||||||
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| Dokumentart: | Beitrag in einem Lehr- oder Fachbuch | ||||||||||||||||||||||||||||
| Titel: | Characterizing Airflow Turbulence in the Acoustic Wind Tunnel Braunschweig (AWB) Using Turbulence Grids | ||||||||||||||||||||||||||||
| Autoren: |
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| Datum: | 26 Februar 2026 | ||||||||||||||||||||||||||||
| Erschienen in: | New Results in Numerical and Experimental Fluid Mechanics XV | ||||||||||||||||||||||||||||
| Referierte Publikation: | Ja | ||||||||||||||||||||||||||||
| Open Access: | Nein | ||||||||||||||||||||||||||||
| Gold Open Access: | Nein | ||||||||||||||||||||||||||||
| In SCOPUS: | Ja | ||||||||||||||||||||||||||||
| In ISI Web of Science: | Nein | ||||||||||||||||||||||||||||
| Band: | 156 | ||||||||||||||||||||||||||||
| DOI: | 10.1007/978-3-032-11115-9_41 | ||||||||||||||||||||||||||||
| Seitenbereich: | Seiten 447-456 | ||||||||||||||||||||||||||||
| Herausgeber: |
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| Verlag: | Springer Cham | ||||||||||||||||||||||||||||
| Name der Reihe: | Notes on Numerical Fluid Mechanics and Multidisciplinary Design | ||||||||||||||||||||||||||||
| ISBN: | 978-3-032-11115-9 | ||||||||||||||||||||||||||||
| Status: | veröffentlicht | ||||||||||||||||||||||||||||
| Stichwörter: | AWB. Turbulence grid, NACA0012, Aeroacoustics, Wind tunnel, Turbulence intensity, sound pressure level | ||||||||||||||||||||||||||||
| HGF - Forschungsbereich: | Energie | ||||||||||||||||||||||||||||
| HGF - Programm: | Materialien und Technologien für die Energiewende | ||||||||||||||||||||||||||||
| HGF - Programmthema: | Photovoltaik und Windenergie | ||||||||||||||||||||||||||||
| DLR - Schwerpunkt: | Energie | ||||||||||||||||||||||||||||
| DLR - Forschungsgebiet: | E SW - Solar- und Windenergie | ||||||||||||||||||||||||||||
| DLR - Teilgebiet (Projekt, Vorhaben): | E - Windenergie | ||||||||||||||||||||||||||||
| Standort: | Braunschweig | ||||||||||||||||||||||||||||
| Institute & Einrichtungen: | Institut für Aerodynamik und Strömungstechnik > Windenergie | ||||||||||||||||||||||||||||
| Hinterlegt von: | Sharma, Sparsh | ||||||||||||||||||||||||||||
| Hinterlegt am: | 09 Mär 2026 11:11 | ||||||||||||||||||||||||||||
| Letzte Änderung: | 16 Mär 2026 07:33 |
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