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Validation of Structured and Hybrid Numerical Methods for Improved Two-Dimensional Dynamic Stall Prediction

Le Pape, Arnaud and Richter, Kai and Knopp, Tobias and Costes, Michel and Gleize, Vinvent and Gardner, Anthony Donald (2009) Validation of Structured and Hybrid Numerical Methods for Improved Two-Dimensional Dynamic Stall Prediction. ODAS 2009 - 10th ONERA-DLR Aerospace Symposium, 06.-08. Oktober 2009, Berlin.

Full text not available from this repository.

Abstract

A joint comprehensive validation activity on the structured numerical method elsA and the hybrid numerical method TAU was conducted with respect to dynamic stall applications. For the purpose of an improved two-dimensional prediction, the influences of several factors on the dynamic stall prediction were investigated. The validation was performed for three deep dynamic stall test cases of the rotor blade airfoil OA209 against experimental data from two-dimensional pitching airfoil experiments, covering low speed and high speed conditions. The requirements for spatial discretization and for temporal resolution in elsA and TAU are shown. The impact of turbulence modeling is discussed for a variety of turbulence models ranging from one-equation Spalart-Allmaras-type models to state-of-the-art seven-equation Reynolds stress models. The influence of the prediction of laminar/turbulent boundary layer transition on the numerical dynamic stall simulation is described. Results of both numerical methods are compared to allow conclusions to be drawn with respect to an improved prediction of dynamic stall.

Item URL in elib:https://elib.dlr.de/59791/
Document Type:Conference or Workshop Item (Paper)
Title:Validation of Structured and Hybrid Numerical Methods for Improved Two-Dimensional Dynamic Stall Prediction
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Le Pape, ArnaudONERAUNSPECIFIED
Richter, KaiUNSPECIFIEDUNSPECIFIED
Knopp, TobiasUNSPECIFIEDUNSPECIFIED
Costes, MichelONERAUNSPECIFIED
Gleize, VinventONERAUNSPECIFIED
Gardner, Anthony DonaldUNSPECIFIEDUNSPECIFIED
Date:6 October 2009
Refereed publication:No
Open Access:No
In DOAJ:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:dynamic stall, SIMCOS project, TAU, elsA, code validation, grid characteristics, turbulence modeling, transition prediction
Event Title:ODAS 2009 - 10th ONERA-DLR Aerospace Symposium
Event Location:Berlin
Event Type:Conference
Event Dates:06.-08. Oktober 2009
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Rotorcraft (old)
DLR - Research area:Aeronautics
DLR - Program:L RR - Rotorcraft Research
DLR - Research theme (Project):L - The Virtual Aerodynamic Rotorcraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Richter, Kai
Deposited On:22 Sep 2009 15:19
Last Modified:19 Oct 2009 09:51

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