DGLR-Publikationsdatenbank - Detailansicht
Titel:
A Test Rig to Assess the Effectiveness of Drag Reduction Devices on a Heavy-Class Helicopter
Autor(en):
G. Gibertini, F. Auteri, G. Campanardi, G. Droandi, D. Grassi, A. Le Pape, A. Zanotti
Zusammenfassung:
The present paper describes the experimental activity carried out to evaluate the effectiveness of the CFD-based shape optimisation of several components of a common helicopter platform of the heavy-weight class. The considered geometry is basically the same of the model tested in the frame of the GOAHEAD project. The comprehensive wind tunnel campaign includes both the original helicopter configuration and the optimised version to assess the optimisation effectiveness by comparison. The optimised components included different hub-cap configurations, a set of fairings for the blade-stubs attachments and the sponsons. Moreover, the effects on drag reduction produced by an array of vortex generators positioned on the back-ramp were investigated. Different measurement techniques were employed as loads and moments measurements, steady and unsteady pressure surveys and stereo particle image velocimetry. The performed measurements confirm a overall drag reduction of about 6% at cruise attitude for the optimised configuration.
Veranstaltung:
41th European Rotorcraft Forum 2015
Medientyp:
Conference Paper
Sprache:
englisch
Format:
21,0 x 29,7 cm, 11 Seiten
Veröffentlicht:
DGLR-Bericht, 2016, 2016-01, 41st European Rotorcraft Forum 2015; S.-; 2016; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn
Preis:
NA
ISBN:
ISSN:
Kommentar:
Klassifikation:
Stichworte zum Inhalt:
attitude (inclination);drag reduction;fairings;helicopters;loads (forces);optimization;particle image velocimetry;shapes;surveys;vortex generators;wind tunnels
Verfügbarkeit:
Bestellbar
Veröffentlicht:
2016
Dieses Dokument ist Teil einer übergeordneten Publikation:
41st European Rotorcraft Forum 2015