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Numerical Study of the Reynolds Number Effect on Low Aspect Ratio Wing at Low Speed.

Kwak, Dongyoun and Gaffuri, Michele and Ohira, Keisuke and Brezillon, Joël (2012) Numerical Study of the Reynolds Number Effect on Low Aspect Ratio Wing at Low Speed. 28th Congress of the International Council of the Aeronautical Sciences , 23-28 Sep 2012, Brisbane, Australia. ISBN 978-0-9565333-1-9

Full text not available from this repository.

Abstract

Numerical studies were performed to understand the Reynolds number effect at high angle of attack and low-speed flight conditions for a supersonic aircraft configuration for which complex vortical flow dominates the overall flow field. To improve the simulation fidelity, dependency of the grid and the flow solver were surveyed. The characteristics of the turbulence modeling were also investigated by using several versions of the SA, k-omega SST and RSM models. The eddy viscosity significantly influences the vortex behavior at high angles of attack. With increasing Reynolds number, no obvious change of the flow field was observed at low angle of attack where the flow is mostly attached. However, the flow field was significantly changed at high angle of attack where the vortical flow dominates.

Item URL in elib:https://elib.dlr.de/79148/
Document Type:Conference or Workshop Item (Paper)
Title:Numerical Study of the Reynolds Number Effect on Low Aspect Ratio Wing at Low Speed.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kwak, DongyounJAXAUNSPECIFIED
Gaffuri, MicheleDLRUNSPECIFIED
Ohira, KeisukeRyoyu SystemsUNSPECIFIED
Brezillon, JoëlDLRUNSPECIFIED
Date:September 2012
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
ISBN:978-0-9565333-1-9
Status:Published
Keywords:Vortical flow, CFD, turbulence modelling, Reynolds number effect
Event Title:28th Congress of the International Council of the Aeronautical Sciences
Event Location:Brisbane, Australia
Event Type:international Conference
Event Dates:23-28 Sep 2012
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation & Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Gaffuri, Michele
Deposited On:04 Dec 2012 15:17
Last Modified:04 Dec 2012 15:17

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