elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Kontakt | English
Schriftgröße: [-] Text [+]

Actuator Disc Modelling for Helicopter Rotors

Le Chuiton, F. (2002) Actuator Disc Modelling for Helicopter Rotors. 28th European Rotorcraft Forum, 2002-09-16 - 2002-09-20, Bristol, UK.

Dieses Archiv kann nicht den gesamten Text zur Verfügung stellen.

Kurzfassung

The helicopter project CHANCE contains, among other developments, the quasi-steady approximation to modelling rotors with actuator discs. This reduces the cost of an unsteady simulation down to a stationary one. In testing existing approaches in the literature, the source term implementation proved to perform best especially in forward flight: source terms located on the disc bottom side impart impulse and energy to the fluid. These are obtained from a loose coupling between two DLR codes: the flow solver FLOWer and the rotor code S4. The latter provides a rotor map, a radial and azimuthal force distribution, to the former converting it to the actuator disc map (source terms). Low velocities are accounted for using preconditioning and a more flexible Chimera approach can be used. The actuator disc feature has been developed in a parallel framework for shorter turn-around times. Capturing the fuselage/disc interaction using the Chimera capability is demonstrated on the HELIFUSE C1 configuration. Next the BO-105 fuselage is used to validate the source term approach by means of a uniform pressure jump. The potential disturbance appears clearly on the disc inflow and pressures on the top centreline match with experimental points. Last, the Dauphin 365N configuration has been used to assess the non-uniform actuator disc. It is checked that previous ONERA results are correctly reproduced with a map provided by ONERA. An actuator disc map derived from S4 is used for further investigation. In particular it is shown that the vorticity field is particularly well captured.

Dokumentart:Konferenzbeitrag (Paper)
Zusätzliche Informationen: LIDO-Berichtsjahr=2003,
Titel:Actuator Disc Modelling for Helicopter Rotors
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Le Chuiton, F.NICHT SPEZIFIZIERT
Datum:2002
Seitenbereich:
Status:veröffentlicht
Stichwörter:helicopter rotor, actuator disc modelling
Veranstaltungstitel:28th European Rotorcraft Forum
Veranstaltungsort:Bristol, UK
Veranstaltungsart:internationale Konferenz
Veranstaltungsdatum:2002-09-16 - 2002-09-20
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Luftfahrt
HGF - Programmthema:Drehflügler
DLR - Schwerpunkt:Luftfahrt
DLR - Forschungsgebiet:L RR - Drehflüglerforschung
DLR - Teilgebiet (Projekt, Vorhaben):L - Der virtuelle Drehflügler
Standort: Köln-Porz , Braunschweig , Göttingen
Institute & Einrichtungen:Institut für Aerodynamik und Strömungstechnik
Hinterlegt von: Claudia Grant
Hinterlegt am:11 Jan 2006
Letzte Änderung:14 Jan 2010 19:05

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Copyright © 2008-2013 Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.