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Calculation of Multibladed Rotors in Forward Flight Using a 3D Navier-Stokes Method

Pahlke, K. and Chelli, E. (2000) Calculation of Multibladed Rotors in Forward Flight Using a 3D Navier-Stokes Method. 26th European Rotorcraft Forum, The Hague (nl), 26.-29.09.2000.

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Abstract

This paper presents numerical simulations based on the solution of the Euler and the Reynolds averaged Navier-Stokes equations of the flow around the 4-bladed 7A and 7AD rotors in forward flight. The chimera technique is applied in order to allow for the relative motion of the blades which are assumed to be rigid. The numerical results are compared with the experimental data of the S1 Modane wind tunnel in form of pressure distributions, normal force coefficients and total thrust. Details concerning the computational effort for the simulations are given. The numerical results agree qualitatively well with the experimental data but the quantitative agreement is only fair. It is concluded that a trim of the CFD simulations including aero-elastic effects is necessary to considerably improve the predictions.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2001,
Title:Calculation of Multibladed Rotors in Forward Flight Using a 3D Navier-Stokes Method
Authors:
AuthorsInstitution or Email of Authors
Pahlke, K.UNSPECIFIED
Chelli, E.UNSPECIFIED
Date:2000
Status:Published
Keywords:CFD, rotary flows, Reynolds averaged Navier-Stokes (RANS) equations, unsteady flow, forward flight
Event Title:26th European Rotorcraft Forum, The Hague (nl), 26.-29.09.2000
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: Claudia Grant
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:20

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