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Risk Analysis for Flutter of Laminar Wings

Tichy, Lorenz and Mai, Holger and Fehrs, Michael and Nitzsche, Jens and Hebler, Anne (2017) Risk Analysis for Flutter of Laminar Wings. In: IFASD 2017 - International Forum on Aeroelasticity and Structural Dynamics. International Forum of Aeroelasticity and Structural Dynamics. IFASD 2017 - International Forum on Aeroelasticity and Structural Dynamics, 25.-28. Jun. 2017, Como, Italien. ISBN 978-88-97576-28-0

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Official URL: http://www.ifasd2017.com

Abstract

The effect of transition from laminar to turbulent flow on the flutter behaviour is discussed on basis of classical and new wind-tunnel tests. Requirements are defined for numerical methods in order to predict the risk of transition effects on the flutter behavior of transport aircraft with laminar wings. Due to the lack of validation data and reliable transition modelling, the accuracy of flutter predictions for aircraft with laminar wing is expected to be lower than for conventional aircraft. Instead of managing late the risk in an engineering way with possible loss of performance, the authors propose to develop early enough adequate transition models and to prepare a wind-tunnel test at high Reynolds and Mach number conditions with a laminar wing in forced motion.

Item URL in elib:https://elib.dlr.de/113219/
Document Type:Conference or Workshop Item (Speech)
Title:Risk Analysis for Flutter of Laminar Wings
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Tichy, Lorenzlorenz.tichy (at) dlr.deUNSPECIFIED
Mai, HolgerHolger.Mai (at) dlr.deUNSPECIFIED
Fehrs, MichaelMichael.Fehrs (at) dlr.deUNSPECIFIED
Nitzsche, Jensjens.nitzsche (at) dlr.deUNSPECIFIED
Hebler, Anneanne.hebler (at) dlr.deUNSPECIFIED
Date:25 June 2017
Journal or Publication Title:IFASD 2017 - International Forum on Aeroelasticity and Structural Dynamics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
UNSPECIFIEDELPO - Editore
Publisher:International Forum of Aeroelasticity and Structural Dynamics
ISBN:978-88-97576-28-0
Status:Published
Keywords:flutter, laminar wing, transition, unsteady aerodynamics, transonic flow, risk analysis
Event Title:IFASD 2017 - International Forum on Aeroelasticity and Structural Dynamics
Event Location:Como, Italien
Event Type:international Conference
Event Dates:25.-28. Jun. 2017
Organizer:Politechnico Milano, Department of Aerospace Science and Technology
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 - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Tichy, Prof. Dr. Lorenz
Deposited On:18 Jul 2017 14:28
Last Modified:31 Jul 2019 20:10

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