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Reynolds number effect on vortex dominant flow on the SST configurations

Kwak, Dongyoun and Ohira, Keisuke and Rudnik, Ralf (2014) Reynolds number effect on vortex dominant flow on the SST configurations. APISAT2014, 24.-26. Sept. 2014, Shanghai, China.

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Official URL: http://apisat2014.csaa.org.cn/

Abstract

Numerical studies were performed to understand the Reynolds number effect at high angles of attack and low-speed flight conditions for supersonic aircraft configurations where vortex flow dominates overall flow field. Two aircraft configurations were used; one is a simple geometry consisting of the wing and body, and other is complex geometry consisting of the wing, body and tails. The RANS computations were conducted at several Reynolds number from experimental test conditions to flight conditions. The Reynolds number effects were strongly observed at wing and tail plane. Especially, the flow separation and vortex formation at the leading edge was depended on the Reynolds number. The flow at the tail plane obviously changed by Reynolds number. Because, the flow at the tail was interacted with the leading edge separated vortex oriented from the main wing which trajectory depends on the Reynolds number. Those Reynolds number effects caused by the vortex behaviors were induced to the nonlinear change of the aerodynamics.

Item URL in elib:https://elib.dlr.de/92361/
Document Type:Conference or Workshop Item (Speech)
Title:Reynolds number effect on vortex dominant flow on the SST configurations
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kwak, DongyounJAXAUNSPECIFIED
Ohira, KeisukeJAXAUNSPECIFIED
Rudnik, Ralfralf.rudnik (at) dlr.deUNSPECIFIED
Date:2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Supersonic, High lift
Event Title:APISAT2014
Event Location:Shanghai, China
Event Type:international Conference
Event Dates:24.-26. Sept. 2014
Organizer:CSAA, RAS, KSAS, JSASS
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: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Grant, Claudia
Deposited On:25 Nov 2014 10:24
Last Modified:05 Dec 2014 13:17

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