Raffel, Markus and Favier, D. and Berton, E. and Maresca, C. and Rondot, C. and Nsimba, M. and Geissler, Wolfgang (2005) μ-PIV and ELDV wind tunnel investigations of the laminar separation bubble above a helicopter blade tip. 6th International Symposium on Particle Image Velocimetry, 2005-11-21 - 2005-11-23, Pasadena, CA (USA).
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Abstract
Detailed studies of the boundary layer profile and 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 related 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 μm 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/21710/ | ||||||||||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||||||||||||||||
Title: | μ-PIV and ELDV wind tunnel investigations of the laminar separation bubble above a helicopter blade tip | ||||||||||||||||||||||||||||||||
Authors: |
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Date: | 2005 | ||||||||||||||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||||||||||||||
Open Access: | Yes | ||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||
Keywords: | micro-PIV, ELDV, dynamic stall, separation bubble, blade tip | ||||||||||||||||||||||||||||||||
Event Title: | 6th International Symposium on Particle Image Velocimetry | ||||||||||||||||||||||||||||||||
Event Location: | Pasadena, CA (USA) | ||||||||||||||||||||||||||||||||
Event Type: | international Conference | ||||||||||||||||||||||||||||||||
Event Start Date: | 21 November 2005 | ||||||||||||||||||||||||||||||||
Event End Date: | 23 November 2005 | ||||||||||||||||||||||||||||||||
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 Institute for Aerodynamics and Flow Technology > High Speed Configurations, GO | ||||||||||||||||||||||||||||||||
Deposited By: | Winkels, Elisabeth | ||||||||||||||||||||||||||||||||
Deposited On: | 24 Jan 2006 | ||||||||||||||||||||||||||||||||
Last Modified: | 24 Apr 2024 19:03 |
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