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Kaufmann, Kurt and Wolf, Christian and Merz, Christoph and Gardner, Anthony (2018) Numerical investigation of blade-tip-vortex dynamics. CEAS Aeronautical Journal, 9 (3), pp. 373-386. Springer. DOI: 10.1007/s13272-018-0287-2 ISSN 1869-5582
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Official URL: https://doi.org/10.1007/s13272-018-0287-2
Abstract
Numerical computations on a finite wing are carried out using DLR's finite-volume solver TAU. The tip-vortex characteristics during static stall and deep dynamic stall are analyzed and compared to particle image velocimetry (PIV) measurements carried out in the side wind facility Goettingen. Computational fluid dynamics (CFD) and experiment are in good agreement, especially for sections close to the blade tip. Too large dissipation within the numerical computations leads to larger vortex size than in the experiment. The dissipation effect increases with larger distances from the wing. The analysis shows that the numerical method is able to capture the complex vortex tructures shed from the wing and helps understanding the source of these structures.
| Item URL in elib: | https://elib.dlr.de/119024/ | |||||||||||||||
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| Document Type: | Article | |||||||||||||||
| Title: | Numerical investigation of blade-tip-vortex dynamics | |||||||||||||||
| Authors: |
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| Date: | 15 February 2018 | |||||||||||||||
| Journal or Publication Title: | CEAS Aeronautical Journal | |||||||||||||||
| Refereed publication: | Yes | |||||||||||||||
| Open Access: | No | |||||||||||||||
| Gold Open Access: | No | |||||||||||||||
| In SCOPUS: | Yes | |||||||||||||||
| In ISI Web of Science: | No | |||||||||||||||
| Volume: | 9 | |||||||||||||||
| DOI : | 10.1007/s13272-018-0287-2 | |||||||||||||||
| Page Range: | pp. 373-386 | |||||||||||||||
| Publisher: | Springer | |||||||||||||||
| ISSN: | 1869-5582 | |||||||||||||||
| Status: | Published | |||||||||||||||
| Keywords: | Helicopter blade, Numerical simulations , Blade-tip vortex, Dynamic stall | |||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | |||||||||||||||
| HGF - Program: | Aeronautics | |||||||||||||||
| HGF - Program Themes: | rotorcraft | |||||||||||||||
| DLR - Research area: | Aeronautics | |||||||||||||||
| DLR - Program: | L RR - Rotorcraft Research | |||||||||||||||
| DLR - Research theme (Project): | L - The Virtual Aerodynamic Rotorcraft | |||||||||||||||
| Location: | Göttingen | |||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Helicopter, GO | |||||||||||||||
| Deposited By: | Kaufmann, Kurt | |||||||||||||||
| Deposited On: | 19 Mar 2018 09:01 | |||||||||||||||
| Last Modified: | 06 Sep 2019 15:24 |
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