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Structural dynamics-CFD interaction for computation of vertical tail buffet

Published online by Cambridge University Press:  04 July 2016

O. A. Kandil ,
S. J. Massey  and
E. F. Sheta
O. A. Kandil
Affiliation:
Aerospace Engineering DepartmentOld Dominion University, Norfolk, USA
S. J. Massey
Affiliation:
Aerospace Engineering DepartmentOld Dominion University, Norfolk, USA
E. F. Sheta
Affiliation:
Aerospace Engineering DepartmentOld Dominion University, Norfolk, USA
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Abstract

The multidisciplinary problem of tail buffeting is solved using three sets of equations. The first set is the unsteady, compressible, full Navier-Stokes equations which are used for obtaining the flowfield vector and the aerodynamic loads. The second set is the coupled aeroelastic equations which are used for obtaining the bending and torsional deflections of the tail. The third set is the grid-displacement equations which are used for updating the grid coordinates due to the tail deflections. For the computational applications, a sharp-edged delta wing of aspect ratio one and a rectangular vertical tail of aspect ratio one placed in the plane of geometric symmetry behind the wing are considered. The configuration is pitched at a critical angle of attack (α = 38°) which produces asymmetric, vortex-breakdown flow from the delta wing primary vortices. The results show the effects of coupled and uncoupled bending-torsional responses and the effects of Reynolds number.

Type
Research Article
Information
The Aeronautical Journal , Volume 100 , Issue 997 , September 1996 , pp. 297 - 304
Copyright
Copyright © Royal Aeronautical Society 1996 

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References

1. Sellers, W.L., Meyers, J.F. and Hepner, T.E. LDV survey over a fighter model at moderate to high angle of attack, SAE Paper 88- 1448, 1988.Google Scholar
2. Erickson, G.E., Hale, R.M., , Banks, D.W., Del Frate, J.H., Shreinfar, J.A., Hanlfay, R.J. and Pulley, C.T. Experimental inves tigation of the F/A-18 vortex flows at subsonic through transonic speeds, AIAA paper 89-2222, 1989.Google Scholar
3. Wentz, W.H. Vortex-fin interaction on a fighter aircraft, AIAA paper 87-2474, AIAA Fifth Applied Aerodynamics Conference, Monterey, CA August 1987.Google Scholar
4. LEE, B. and Brown, D. Wind tunnel studies of F/A-18 tail buffet, AIAA paper 90-1432, 1990.Google Scholar
5. Rao, D.M., Puram, C.K. and Shah, G.H. Vortex control for tail buf fet alleviation on a twin-tail fighter configuration, SAE Paper 89- 2221, 1989.Google Scholar
6. Cole, S.R., Moss, S.W. and Doogett, R.V. Some buffet response characteristics of a twin-vertical-tail configuration, NASA TM- 102749, October 1990.Google Scholar
7. Washburn, A.E., Jenkins, L.N. and Ferman, M.A. Experimental investigation of vortex-fin interaction, AIAA paper 93-0050, AIAA 31st ASM, Reno, NV, January 1993.Google Scholar
8. Bean, D.E. and Lee, B.H.K. Correlation of wind tunnel and flight test data for F/A-18 vertical tail buffet, AIAA paper 94-1800-CP, 1994.Google Scholar
9. Kandie, O.A., Kandil, H.A. and Massey, S.J. Simulation of tail buffet using delta wing-vertical tail configuration, AIAA paper 93-3688-CP, AIAA Atmospheric Flight Mechanics Conference, Monterery, CA, August 1993, pp 566-577.Google Scholar
10. Kandil, O.A. and Flanagan, M.W. Vertical tail buffet in vortex breakdown flows, 5th International Symposium on Computational Fluid Dynamics, Sendai-Japan, August 1993.Google Scholar
11. Flanagan, M.W. Simulation of Vertical Tail Buffet in Internal Vortex Breakdown Flows, MS Thesis, Aerospace Engineering Department, Old Dominion University, Norfolk, VA, December 1993.Google Scholar
12. Kandil, O.A., Massey, S.J. and Kandil, H.A. Computations of vortex-breakdown induced tail buffet undergoing bending and torsional vibrations, AIAA paper 94-1428-CP, AIAA/ASME/ASCE/ASC Structural, Structural Dynamics and Material Conference, SC April 1994, pp 977-993.Google Scholar
13. Kandil, O.A., Sheta, E.F. and Massey, S.J. Twin tail/delta wing configuration buffet due to unsteady vortex breakdown flow, AIAA paper 96-2517-CP, 14th AIAA Applied Aerodynamics Conference, 17-20 June 1996, Vol 2, pp 1136-1150.Google Scholar
14. Schuster, D., Vadyak, J. and Atta, E. Static aeroelastic analysis of fighter aircraft using a three-dimensional Navier-Stokes algorithm, AIAA paper 90-0435, January 1990.Google Scholar
15. Kandil, O.A., Chuang, H.A. and Salman, A.A. Unsteady flow computation of oscillating flexible wings, AIAA paper 90-0937-CP, April 1990, pp 1370-1381.Google Scholar
16. Kandil, O.A. and Salman, A.A. Unsteady vortex-dominated flow around wings with oscillating leading-edge flaps, AIAA paper 91-0435,January 1991.Google Scholar
17. Straganac, T.W. A Numerical model of unsteady, subsonic aero elastic behavior, NASA TM 100487, December 1987.Google Scholar
18. Straganac, T.W., Mook, D.T. and Mitchum, M.W. The numerical simulation of subsonic flutter, AIAA paper 87-1428, June 1987.Google Scholar