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Raffel, Markus and Favier, D. and Berton, E. and Rondot, C. and Nsimba, M. and Geissler, Wolfgang (2006) Micro-PIV and ELDV wind tunnel investigations of the laminar separation bubble above a helicopter blade tip. Measurement Science and Technology, 17 (7), pp. 1652-1658. Institute of Physics (IOP) Publishing. doi: 10.1088/0957-0233/17/7/003. ISSN 0957-0233.
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Official URL: https://iopscience.iop.org/article/10.1088/0957-0233/17/7/003
Abstract
Studies of the boundary layer profile and of the characteristics of the flow velocity distribution close to the leading edge of a helicopter blade profile were conducted using the embedded laser doppler velocimetry (ELDV) and stereo-PIV. The relatively small scales of flow structures leading to dynamic stall, motivated an additional 2C-PIV study in which the flow field has been measured with a relatively high spatial resolution. The feasibility of PIV measurements utilizing a mirror telescope in a wind tunnel has been demonstrated successfully. The spatial resolution of approximately 50 (my)m allowed a judgment on the choice of turbulence models and damping coefficients for the improvement of CFD predictions.
| Item URL in elib: | https://elib.dlr.de/21654/ | ||||||||||||||||||||||||||||
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| Document Type: | Article | ||||||||||||||||||||||||||||
| Title: | Micro-PIV and ELDV wind tunnel investigations of the laminar separation bubble above a helicopter blade tip | ||||||||||||||||||||||||||||
| Authors: |
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| Date: | 2006 | ||||||||||||||||||||||||||||
| Journal or Publication Title: | Measurement Science and Technology | ||||||||||||||||||||||||||||
| Refereed publication: | Yes | ||||||||||||||||||||||||||||
| Open Access: | No | ||||||||||||||||||||||||||||
| Gold Open Access: | No | ||||||||||||||||||||||||||||
| In SCOPUS: | Yes | ||||||||||||||||||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||||||||||||||||||
| Volume: | 17 | ||||||||||||||||||||||||||||
| DOI: | 10.1088/0957-0233/17/7/003 | ||||||||||||||||||||||||||||
| Page Range: | pp. 1652-1658 | ||||||||||||||||||||||||||||
| Editors: |
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| Publisher: | Institute of Physics (IOP) Publishing | ||||||||||||||||||||||||||||
| ISSN: | 0957-0233 | ||||||||||||||||||||||||||||
| Status: | Published | ||||||||||||||||||||||||||||
| Keywords: | micro-PIV, ELDV, dynamic stall, separation bubble, blade tip | ||||||||||||||||||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||||||||||||||||||
| HGF - Program Themes: | Rotorcraft (old) | ||||||||||||||||||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||||||||||||||||||
| DLR - Program: | L RR - Rotorcraft Research | ||||||||||||||||||||||||||||
| DLR - Research theme (Project): | L - The Virtual Aerodynamic Rotorcraft (old) | ||||||||||||||||||||||||||||
| Location: | Göttingen | ||||||||||||||||||||||||||||
| Institutes and Institutions: | Institute for Aerodynamics and Flow Technology > Helicopter, GO | ||||||||||||||||||||||||||||
| Deposited By: | Winkels, Elisabeth | ||||||||||||||||||||||||||||
| Deposited On: | 25 Jan 2006 | ||||||||||||||||||||||||||||
| Last Modified: | 25 Jul 2025 13:57 |
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