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The influence of fixed transition modeling on aeroelastic simulations in comparison to wind tunnel experiments

Neumann, Jens and Friedewald, Diliana and Hennings, Holger (2018) The influence of fixed transition modeling on aeroelastic simulations in comparison to wind tunnel experiments. CEAS Aeronautical Journal, 9 (3), pp. 491-503. Springer. DOI: 10.1007/s13272-018-0299-y ISSN 1869-5590

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Abstract

This paper presents the results from three-dimensional fluid-structure interaction simulations of an aeroelastic wind tunnel experiment which was conducted in the Transonic Wind Tunnel in Göttingen, Germany in 2013. The experimental setup consisted of two wings: a rectangular NACA0010 wing, which was used as a gust generator, and further downstream a three-dimensional elastic wing representing the outer part of a typical transport-aircraft wing, the so-called "Aerostabil" wing. Laminar-turbulent boundary layer transition has been tripped to generate turbulent flow. The investigations in this paper are focused on the numerical influence of fixed transition compared to fully turbulent simulations. The effect of the different aerodynamic modeling becomes most obvious for higher angles of attack. Compared to experimental data, steady simulations of static aeroelastic lift polars show the improvement of the numerical prediction accuracy for coupled simulations with fixed transition modeling. Moreover, unsteady simulations reveal a significant reduction of unsteady loads for simulations with fixed transition compared to fully turbulent simulations.

Item URL in elib:https://elib.dlr.de/123134/
Document Type:Article
Title:The influence of fixed transition modeling on aeroelastic simulations in comparison to wind tunnel experiments
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Neumann, JensInstitut für AeroelastikUNSPECIFIED
Friedewald, DilianaInstitut für AeroelastikUNSPECIFIED
Hennings, HolgerInstitut für AeroelastikUNSPECIFIED
Date:April 2018
Journal or Publication Title:CEAS Aeronautical Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:9
DOI :10.1007/s13272-018-0299-y
Page Range:pp. 491-503
Publisher:Springer
ISSN:1869-5590
Status:Published
Keywords:transition tripping, aeroelasticity, fluid-structure interaction, gust experiment, steady and unsteady aerodynamics, flow separation, Aerostabil wing
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 Simulation
Deposited By: Neumann, Jens
Deposited On:19 Nov 2018 12:02
Last Modified:31 Jul 2019 20:20

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