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Experimental Results of the European HELINOISE Aeroacoustic Rotor Test
Splettstoesser, W.R. and Niesl, G. and Cenedese, F. and Nitti, F. and Papanikas, D.G. (1995) Experimental Results of the European HELINOISE Aeroacoustic Rotor Test. In: Beitrag im Journal of the American Helicopter Society Vol. 40, No. 2, pp. 3-14, April 1995, pp. 3-14. American Helicopter Society, 217 N. Washington Street, Alexandria VA 22314, USA.
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Abstract
In a cooperative research program between eight European partners, a 40% geometrically and dynamically scaled and highly instrumented model of the ECD (formerly MBB) BO 105 helicopter main rotor was tested in the open-jet anechoic test section of the German-Dutch Wind Tunnel (DNW) in the Netherlands. The primary objectives of this experimental study were 1) to improve the physical understanding of the impulsive rotor noise sources by correlating blade pressure and acoustic characteristics and 2) to provide an extensive airload and acoustic database for code validation purposes.Consequently, a comprehensive set of simultaneous acoustic and aerodynamic blade surface pressure data as well as blade dynamic and performance data were measured for the standard rotor with rectangular blade tips. In addition, initial quantitative information of the blade- vortecx miss distance during blade-vortex interaction (BVI) was obtained.
| Document Type: | Conference or Workshop Item (Paper) | ||||||||||||
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| Additional Information: | institution=AHS, LIDO-Berichtsjahr=1995, | ||||||||||||
| Title: | Experimental Results of the European HELINOISE Aeroacoustic Rotor Test | ||||||||||||
| Authors: |
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| Date: | 1995 | ||||||||||||
| Journal or Publication Title: | Beitrag im Journal of the American Helicopter Society Vol. 40, No. 2, pp. 3-14, April 1995 | ||||||||||||
| Page Range: | pp. 3-14 | ||||||||||||
| Publisher: | American Helicopter Society, 217 N. Washington Street, Alexandria VA 22314, USA | ||||||||||||
| Series Name: | Vol. 40, No. 2 | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | Rotor impulsive noise, high speed compressiblility noise, blade surface pressures, blade loading, blade-vortex miss distance, | ||||||||||||
| HGF - Research field: | UNSPECIFIED | ||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||
| HGF - Program Themes: | L - no assignement | ||||||||||||
| DLR - Research area: | UNSPECIFIED | ||||||||||||
| DLR - Program: | L DT - Drehflüglertechnologien | ||||||||||||
| DLR - Research theme (Project): | L - The Quiet and Comfortable Rotorcraft | ||||||||||||
| Location: | Köln-Porz , Braunschweig , Göttingen | ||||||||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik | ||||||||||||
| Deposited By: | elib DLR-Beauftragter | ||||||||||||
| Deposited On: | 03 Apr 2006 | ||||||||||||
| Last Modified: | 27 Apr 2009 10:05 |
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