Computational Analysis of the External Flowfield About a Fighter Configuration 901854
A computational analysis of the external flowfield about a fighter configuration was conducted to evaluate an Euler solver and to investigate a hybrid combination of an Euler solver and a panel method. The analysis demonstrated the usefulness of Computational Fluid Dynamics (CFD) as a configuration design tool. The configuration selected for the study involved complex flowfields for which substantial wind tunnel test data were available. The Euler code provided good estimates for the incremental effects of aileron deflections using both wing-alone and wing-fuselage modeling.
In general, the addition of the fuselage to the wing-alone model improves estimates of the effects of leading edge and trailing edge flap deflections. Using a hybrid combination of Euler code results with incremental effects of the tails from a subsonic panel method provides good estimates of trimmed drag changes for small flap/aileron deflections.
Citation: Miller, G. and Agrawal, S., "Computational Analysis of the External Flowfield About a Fighter Configuration," SAE Technical Paper 901854, 1990, https://doi.org/10.4271/901854. Download Citation
Author(s):
G. A. Miller, S. Agrawal
Affiliated:
McDonnell Aircraft Co., McDonnell Douglas Corp. St. Louis, MO
Pages: 12
Event:
Aerospace Technology Conference and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Computational fluid dynamics
Wind tunnel tests
Simulation and modeling
Flaps
Fuselages
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