Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-26T22:30:56.075Z Has data issue: false hasContentIssue false
  • English
  • Français

A summary of further measurements of steady and oscillatory pressures on a rectangular wing

Published online by Cambridge University Press:  04 July 2016

D. G. Mabey ,
B. L. Welsh  and
C. R. Pyne
D. G. Mabey
Affiliation:
DRA (Aerospace Division) Bedford
B. L. Welsh
Affiliation:
DRA (Aerospace Division) Bedford
C. R. Pyne
Affiliation:
DRA (Aerospace Division) Bedford
Get access Rights & Permissions [Opens in a new window]

Summary

This report describes a series of steady and time dependent pressure measurements on a half-model of a rectangular wing of aspect ratio 4. The wing was mounted on a halfbody attached to a sidewall of the RAE 8 ft x 8 ft windtunnel and the tests were made at Mach numbers of 0·60, 0·70 and 0·80 with fixed transition and a Reynolds number of about 2·4 x 106 at the highest Mach number. The wing was oscillated about its mid-chord axis at four frequencies giving frequency parameters up to 0·27 at M = 0·80. The static angle of incidence was varied from -10° to + 10°; here interest is centred on angles of incidence for which the flow on the upper surface of the wing is separated.

Selected mean and oscillatory measurements are offered as a challenge to computational fluid dynamicists for this simple threedimensional configuration. The measurements are of particular interest because the transonic flows include both incipient and well developed separations.

Type
Research Article
Information
The Aeronautical Journal , Volume 97 , Issue 966 , July 1993 , pp. 195 - 207
Copyright
Copyright © Royal Aeronautical Society 1993 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

*

Now Visiting Professor, Department of Aeronautics, Imperial College, London.

References

1. Mabey, D.G., Welsh, B.L. and Pyne, C.R. Measurements of Steady and Oscillatory Pressures on a Rectangular Wing, RAE Technical Report 86040, 1986.Google Scholar
2. Mabey, D.G., Welsh, B.L. and Pyne, C.R. A summary of measurements of steady and oscillatory pressure on a rectangular wing, Aeronaut J, January 1988, 92 (911) pp.10–28.Google Scholar
3. Bland, S.R. AGARD Three-Dimensional Aeroelastic Configurations, AGARD AR-167, (1982).Google Scholar
4. Davies, D.E. Theoretical Determination of Subsonic Oscillatory Airforce Coefficients, RAE Technical Report 76059, R&M 3804, 1976.Google Scholar
5. Davies, D.E. On the use of Fortran programs for evaluating the generalised airforces and aerodynamic loading on a flat plate wing oscillatory harmonically in subsonic flow, RAE Technical Memorandum Structures 881, 1976.Google Scholar
6. Davies, S.S. Data set 2 NACA 64A 010 (NASA Ames model) oscillatory pitching, AGARD R702, 1982.Google Scholar
7. Welsh, B.L. and Mcowat, D.M. Presto: A System for the Measurement and Analysis of Time-Dependent Signals, RAE Technical Report 79135, 1979.Google Scholar
8. Welsh, B.L. Recent developments in thee measurement and analysis of time dependent signals, AGARD CP-348, Paper 35, 1983.Google Scholar
9. Mabey, D.G. Some aspects of aircraft dynamic loads due to flow separation, AGARD R-750, also Prog Aerospace Sci, 26, pp. 115–151, 1989.Google Scholar
10. Owen, T.B. Techniques of Pressure Fluctuation Measurements Employed at RAE Low Speed Windtunnels, AGARD Report 171, 1958.Google Scholar
11. Tijdeman, H. Investigations of the Transonic Flow Round Oscillating Aerofoils, NLR Technical Report 77-090U, 1977.Google Scholar
12. Mabey, D.G. Flow unsteadiness and model vibration in windtunnels at subsonic and transonic speeds, ARC CP-1155, 1971.Google Scholar
13. Mundell, A.R.G. and Mabey, D.G. Pressure fluctuations caused by transonic shock/boundary layer interaction, Aeronaut 7, August/September 1986, 90, (897), pp. 274–282.Google Scholar
14. Mabey, D.G. A Review of Scale Effects in Unsteady Aerodynamics, RAE Technical Report 91007, 1991.Google Scholar
15. 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 Technical Report 82109, 1982.Google Scholar
16. Mabey, D.G., Welsh, B.L. and Pyne, C.R. Further Measurements of Steady and Oscillatory Pressures on a Rectangular Wing, RAE Technical Report 92-003, 1992.Google Scholar
17. Le Balleur, J.C. and Girodroux-lavione, P. A semi implicit and unsteady numerical method of viscous-inviscid interaction for transonic separated flows, La Rech Aerospatial, 1984, (1).Google Scholar