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Calculations of Multibladed Rotors in Forward Flight Using 3D Euler Methods of DLR and ONERA

Boniface, J.-C.* and Pahlke, K. (1996) Calculations of Multibladed Rotors in Forward Flight Using 3D Euler Methods of DLR and ONERA. In: Proc. 22nd European Rotorcraft Forum, 17.-19.9.1996, Brighton Centre, Brighton, UK..

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Abstract

Two different Euler codes developed by DLR (using a chimera scheme) and ONERA (using a multi-block moving grid approach) for calculations of multibladed rotors in forward flight with wake capturing are compared and assessed using tow common test cases for which the experimental data for pressure coefficient are available at several blade sections. The test cases are the 3-bladed ONERA model rotor with PF1 tip and the 4-bladed 7AD model rotor designed by ECF. For both test cases, high advance ratios are considered with a transonic regime on the advancing blade side and the blades are subject to flapping and cyclic pitch motions. For the 3-bladed ONERA model rotor the predicted pressure distributions of both codes are in overall good agreement. Considering that Euler calculation do not account for viscous effects and that blades are rigid, the predicted surface data.

Document Type:Conference or Workshop Item (Paper)
Additional Information: institution=The Royal Aeronautical Society, LIDO-Berichtsjahr=1996, pages=14,
Title:Calculations of Multibladed Rotors in Forward Flight Using 3D Euler Methods of DLR and ONERA
Authors:
AuthorsInstitution or Email of Authors
Boniface, J.-C.*UNSPECIFIED
Pahlke, K.UNSPECIFIED
Date:1996
Journal or Publication Title:Proc. 22nd European Rotorcraft Forum, 17.-19.9.1996, Brighton Centre, Brighton, UK.
Status:Published
Keywords:Euler codes, chimera, moving grids, multibladed rotor, forward flight, wake capturing, transonic flow, unsteady flows.
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
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 10:06

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