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A Computational Study of an Oscillating VR-12 Airfoil with a Gurney FlapComputations of the flow over an oscillating airfoil with a Gurney-flap are performed using a Reynolds Averaged Navier-Stokes code and compared with recent experimental data. The experimental results have been generated for different sizes of the Gurney flaps. The computations are focused mainly on a configuration. The baseline airfoil without a Gurney flap is computed and compared with the experiments in both steady and unsteady cases for the purpose of initial testing of the code performance. The are carried out with different turbulence models. Effects of the grid refinement are also examined and unsteady cases, in addition to the assessment of solver effects. The results of the comparisons of steady lift and drag computations indicate that the code is reasonably accurate in the attached flow of the steady condition but largely overpredicts the lift and underpredicts the drag in the higher angle steady flow.
Document ID
20050184175
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Rhee, Myung
(Army Armament Research, Development and Engineering Center United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2004
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
AIAA Paper 2004-5202
Meeting Information
Meeting: 22nd AIAA Applied Aerodynamics Conference
Location: Province, RI
Country: United States
Start Date: August 16, 2004
End Date: August 19, 2004
Sponsors: American Inst. of Aeronautics and Astronautics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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