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ALLEGRA: Boundary Layer Transition and Flutter Stability of Airfoils

Fehrs, Michael (2014) ALLEGRA: Boundary Layer Transition and Flutter Stability of Airfoils. DLR-Interner Bericht. DLR-IB 232-2014 J 06, 62 S.

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Abstract

This report presents results for CFD computations for 2d airfoil flows with free boundary layer transition. For transition prediction the γ-Reθ transition model is used in combination with the SST k-ω model. Different airfoils and flow conditions are considered to investigate the influence of the free boundary layer transition on the dynamic aeroelastic stability (flutter) of supercritical and laminar airfoils in the transonic flight regime. The results are compared to fully turbulent results. This report presents the results for the milestone 1.1.1 “2d investigations completed” and milestone 1.2.1 “Parameter variation for laminar airfoils and assessment” in work package HAP 1 of the project ALLEGRA.

Item URL in elib:https://elib.dlr.de/94561/
Document Type:Monograph (DLR-Interner Bericht)
Title:ALLEGRA: Boundary Layer Transition and Flutter Stability of Airfoils
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Fehrs, Michaelmichael.fehrs (at) dlr.deUNSPECIFIED
Date:March 2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:62
Status:Published
Keywords:boundary layer Transition, laminar airfoils
Institution:Institut für Aeroelastik
Department:Aeroelastische Simulation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Simulations
Deposited By: Fehrs, Michael
Deposited On:13 Jan 2015 10:34
Last Modified:13 Jan 2015 10:34

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