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A review of some recent research on time-dependent aerodynamics

Published online by Cambridge University Press:  04 July 2016

D. G. Mabey
D. G. Mabey*
Affiliation:
Royal Aircraft Establishment, Bedford
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Extract

Time-dependent aerodynamics is primarily concerned with the pressure distributions developed by moving control surfaces, such as the oscillation of a trailing-edge flap, the rapid extension of a spoiler, or the pitching of a canard.

Some recent experiments in time-dependent aerodynamics are reviewed. These include wind tunnel dynamic interference and its attenuation, the aerodynamics of an oscillating trailing-edge flap, the reduction of response to turbulence by active control, the aerodynamic characteristics of rapidly moving spoilers, and the time-dependent aerodynamic characteristics of supercritical wings.

The paper concludes with a discussion of aeroelastic problems at subsonic and transonic speeds and with some buffeting measurements in a cryogenic wind tunnel.

Type
Rolls-Royce European Symposium 1983
Information
The Aeronautical Journal , Volume 88 , Issue 872 , February 1984 , pp. 23 - 37
Copyright
Copyright © Royal Aeronautical Society 1984 

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References

1. Mabey, D. G., McOwat, D. M. and Welsh, B. L. Aerodynamic characteristics of moving trailing-edge controls at subsonic and transonic speeds. AGARD CP 262, Paper 20, 1979.Google Scholar
2. McOwat, D. M., Welsh, B. L. and Cripps, B. E. Time dependent pressure measurements on a swept-back wing with an oscillating flap at subsonic and transonic speeds. RAE TR 81-033, Marc 1981.Google Scholar
3. Mabey, D. G., Welsh, B. L. and Cripps, B. E. Further aerodynamic characteristics of moving trailing-edge controls at subsonic and transonic speeds. RAE TR 80-134, November 1980.Google Scholar
4. Mabey, D. G., Welsh, B. L., Stott, G. and Cripps, B. E. The dynamic characteristics of rapidly moving spoilers at subsonic and transonic speeds. RAE TR 82-109, 1982.Google Scholar
5. Welsh, B. L. and Cripps, B. E. The reduction by active control, of the turbulence response of a swept wing model at subsonic and transonic speeds. RAE TR 81-136, November 1981.Google Scholar
6. Welsh, B. L. and Pyne, C. R. A method to improve the temperature stability of semi-conductor strain gauge pressure transducers. RAE TR 77-155, 1977.Google Scholar
7. Welsh, B. L. and Mcowat, D. M. Presto: a system for the measurement and analysis of time-dependent signals. RAE TR 79-135,1979.Google Scholar
8. Cripps, B. E. A users guide to the RAE Bedford ‘Presto’ computing system. Tech Memo Structures 1001, January 1982.Google Scholar
9. Welsh, B. L. Recent development in the measurement of time- dependent pressure, AGARD CP 348, Paper 35, September 1983.Google Scholar
10. Stott, G., Pyne, C. R. and Mcowat, D. M. An hydraulic actuation system for the excitation of wind tunnel models. RAE TR in preparation.Google Scholar
11. Lambourne, N. C., Kienappel, K., Destuynder, R. and Roos, R. Comparative measurements in four European wind tunnels of the unsteady pressures on an oscillating model. (The NORA experiments). AGARD R-673, October 1979.Google Scholar
12. Bland, S. R. AGARD three-dimensional aeroelastic configurations. AGARD AR-167, March 1982.Google Scholar
13. Mabey, D. G. The use of sound absorbing walls to reduce dynamic interference in wind tunnels. R&M 3831, November 1976.Google Scholar
14. Mabey, D. G. The reduction of dynamic interference by sound absorbing walls in the RAE 3 ft Tunnel. R&M 3837, August 1977.Google Scholar
15. ANON, AGARD compendium of unsteady aerodynamics. Report in preparation.Google Scholar
16. Grosser, W. F., Hollenbeck, W. W. and Eckholdt, D. C. The C-5A active lift distribution control system, impact of active control on aircraft design. AGARD CP-157, October 1974.Google Scholar
17. Dowell, E. H., Williams, M. H. and Ray, M. R. An assessment of theoretical models for viscous and transonic flow. AGARD CP 296, Paper 1, September 1980.Google Scholar
18. Garner, H. C. A practical framework for the evaluation of oscillatory aerodynamic loading on wings in supercritical flow. AGARD CP 226, Paper 16, April 1977.Google Scholar
19. Lambourne, N. C. and Welsh, B. L. Pressure measurements on a wing oscillating in supercritical flow. RAE TR 79-074, June 1979.Google Scholar
20. Mabey, D. G. Oscillatory flows from shock induced separations on biconvex aerofoils of varying thickness in ventilated wind tunnels. AGARD CP 296, Paper 11, September 1980.Google Scholar
21. Mabey, D. G., Welsh, B. L. and Cripps, B. E. Periodic flows on a rigid 14% thick biconvex wing at transonic speeds. TR 81-059, May 1981.Google Scholar
22. Levy, L. L. Predicted and experimental steady and unsteady flows about a biconvex aerofoil. NASA TM 81-262, 1981.Google Scholar
23. Pearcey, H.H. Shock induced separation and its prevention by design and boundary layer control. Boundary layer and flow control, Pergamon Press, 1961, 2, 1166–1344.Google Scholar
24. Mabey, D. G. Some remarks on buffeting, VKI lecture series ‘Unsteady Airloads in Separated Transonic Flows’, March 1981. Also RAE Tech Memo Structures 980, February 1981.Google Scholar
25. Tijdeman, H. Investigations of the transonic flow round oscillating aerofoils. NLR 77-090U, October 1977.Google Scholar
26. Moss, G. F. and Pierce, D. The dynamic response of wings in torsion at high subsonic speeds. AGARD CP 226, Paper 4, April 1977.Google Scholar
27. Mabey, D. G. Some measurements of buffeting on a flutter model of a typical strike aircraft. AGARD Flight Mechanics Conference, Paper 13, October 1982.Google Scholar
28. Beddoes, T. S. Stall flutter of a finite wing. Westland RP584, ARC 37909, October 1978.Google Scholar
29. Beddoes, T. S. A synthesis of unsteady aerodynamic effects including stall hysteresis. Paper presented at 1st European Rotorcraft and Powered Lift Forum, Southampton, September 1975.Google Scholar
30. Mabey, D. G. An hypothesis for the prediction of flight penetration of wing buffeting from dynamic tests of wind tunnel models. ARC CP 1171, 1971.Google Scholar
31. Kilgore, R. A., Adcock, J. B. and Ray, E. J. Flight simulation characteristics of the Langley high Reynolds number transonic tunnel. AIAA, Paper 74-80, February 1974.Google Scholar
32. Mabey, D. G. Some remarks on dynamic aeroelastic model tests in cryogenic wind tunnels. NASA CR 145029, September 1975.Google Scholar
33. Boyden, R. P. and Johnson, W. G. Preliminary results of buffet tests in a cryogenic wind tunnel. NASA TM 81923, July 1981.Google Scholar
34. Garner, H. C. Theoretical use of variable porosity in slotted tunnels for minimising wall interference on dynamic measurements. R&M 3706, February 1971.Google Scholar
35. Goethert, B. H. Transonic wind tunnel testing. Agardograph 49, Pergamon Press, New York, 1961.Google Scholar
36. Wasserman, L. S. and Mykytow, W. J. Wind tunnel flutter tests. AGARD manual of aeroelasticity, Part IV, Chapter 8, 11.Google Scholar