Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-05T07:59:38.398Z Has data issue: false hasContentIssue false
  • English
  • Français

A Review of Slotted-Wall Wind Tunnel Interference Effects on Oscillating Models in Subsonic and Transonic Flows

Published online by Cambridge University Press:  04 July 2016

K. C. Wight
K. C. Wight*
Affiliation:
Aerodynamics Division, National Physical Laboratory
Get access Rights & Permissions [Opens in a new window]

Summary

Measurements of oscillatory derivatives made in various tunnels at the NPL over the past few years have indicated that slotted walls, as used in high-speed tunnels, may give rise to large interference effects on damping derivatives. Other workers in this field, notably in America, have also observed interference effects both with solid and with slotted walls. This paper presents the available evidence, so that those making similar measurements may be aware of the effects.

Type
Research Article
Information
The Aeronautical Journal , Volume 68 , Issue 646 , October 1964 , pp. 670 - 674
Copyright
Copyright © Royal Aeronautical Society 1964

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.)

References

1.O'hara, F., Squire, L. C. and Haines, A. B. An Investigation of Interference Effects on Similar Models of Different Size in Various Transonic Tunnels in the U.K. R.A.E. Tech nical Note Aero. 2606. A.R.A. Wind Tunnel Note 27. A.R.C. 21 094-A.C. 582, Feb. 1959.Google Scholar
2.Wright, Ray H. The Effectiveness of the Transonic Wind Tunnel as a Device for Minimising Tunnel-boundary Interference for Model Tests at Transonic Speeds. Presented at the Meeting on Interference Effects in Aerodynamic Test Facilities. Rhode St. Genese, Belgium, March 1959.Google Scholar
3.Pearcy, H. H., Sinnott, C. S. and Osborne, J. Some Effects of Wind Tunnel Interference Observed in Tests on Two-dimensional Aerofoils at High Subsonic and Transonic Speeds. Presented at the Meeting on Interference Effects in Aerodynamic Test Facilities. Belgium March 1959.Google Scholar
4.Squire, L. C. A Comparison of Test Results from Three Transonic Tunnels for Two Sets of Geometrically Similar Models. R.A.E. Technical Note Aero. 2679. A.R.C. 22 059-A.C. 688, March 1960.Google Scholar
5.Maeder, P. F. and Wood, A. D.Transonic Wind Tunnel Test Sections. Z.A.M.P., Vol. VII, pp. 177–212, May 1956.Google Scholar
6.Acum, W. E. A. Note on the Evaluation of Solid Blockage Corrections for Rectangular Wind Tunnels with Slotted Walls. A.R.C. 22 912-F.M. 3097-AC. 755, 12th June 1961.Google Scholar
7.Maeder, P. F., Anderson, G. F. and Carroll, J. B. Experimental Investigations of Subsonic Wall Interference in Rectangular Slotted Test Sections. Tech. Note WT-16, January 1955. Div. of Eng. Brown University, Providence, R.I.Google Scholar
8.Davis, D. and Moore, D. Analytic Study of Blockage and Lift Interference Corrections for Slotted Tunnels Obtained by the Substitution of an Equivalent Homogeneous Boundary for the Discrete Slots. NACA RM L53E07b, 1953.Google Scholar
9.Jones, W. P. Wind Tunnel Wall Interference Effects on Oscillating Aerofoils in Subsonic Flow. A.R.C. R. & M. 2943, December 1953.Google Scholar
10.Acum, W. E. A. Wall Corrections for Wings Oscillating in Wind Tunnels of Closed Rectangular Section. Parts I and II. A.R.C. R. & M. 3312, January 1958.Google Scholar
11.Drake, D. G. Wind-tunnel Interference for Oscillating Wings at Transonic Speeds. A.R.C. 21 489-01515, December 1959.Google Scholar
12.Bratt, J. B. Measurements of the Direct Pitching Moment Derivatives for an English Electric Transonic Wing and a Boulton Paul Delta at Transonic Speeds. A.R.C. 15 206- S. & C. 2678-0-1014-F.M. 1792, 29th September 1952.Google Scholar
13.Bratt, J. B. and Wight, K. C. Measurements of Pitching Oscillation Derivatives at Subsonic and Transonic Speeds for an M-wing. (Interim Report.) A.R.C. 21661-01534- L.A. 236. 5th February 1960.Google Scholar
14.Miles, C. J. W. and Bridgman, K. B. Measurements of the Direct Pitching Oscillation Derivatives for Three Cropped Delta and Three Arrowhead Planforms at Subsonic and Transonic Speeds. NPL Aero Report 1033. A.R.C. 23 990- 01706, 27th August 1962.Google Scholar
15.Wight, K. C. and Nixon, J. A. Measurements of the Direct Oscillatory Derivatives for a Linear Bending Mode on Four Rigid Half-span Models at Subsonic and Transonic Speeds, in Closed and Slotted Tunnels. NPL Aero Report No. 1061. A.R.C. 24 650-0-1764-S. & C. 3706, March 1963.Google Scholar
16.Garner, H. C. and Acum, W. E. A. Theoretical Subsonic Derivatives for an Oscillating M-wing. A.R.C. R. & M. 3214, January 1959.Google Scholar
17.Runyan, H. L. and Watkins, C. E. Considerations on the Effects of Wind-tunnel Walls on Oscillating Air Forces for Two-dimensional Subsonic Compressible Flow. NACA Report 1150, 1953.Google Scholar
18.Widmayer, E., Clevenson, S. A. and Leadbetter, S. A. Some Measurements of Aerodynamic Forces and Moments at Subsonic Speeds on a Rectangular Wing of Aspect Ratio 2 Oscillating About Mid-Chord. NACA Tech. Note 4240, May 1958.Google Scholar
19.Acum, W. E. A. Resonance for Subsonic Flow in Wind Tunnels with Slotted Walls. NPL Aero Report 1012. A.R.C. 23 717-0-1677-F.M. 3177-S. & C. 3622, April 1962.Google Scholar