Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-07T22:30:28.912Z Has data issue: false hasContentIssue false
  • English
  • Français

Experimental investigation into transonic flows over tandem cavities

Published online by Cambridge University Press:  04 July 2016

N. Taborda ,
D. Bray  and
K. Knowles
N. Taborda
Affiliation:
Department of Aerospace, Power and Sensors Cranfield University RMCS, Shrivenham Swindon, UK
D. Bray
Affiliation:
Department of Aerospace, Power and Sensors Cranfield University RMCS, Shrivenham Swindon, UK
K. Knowles
Affiliation:
Department of Aerospace, Power and Sensors Cranfield University RMCS, Shrivenham Swindon, UK
Get access Rights & Permissions [Opens in a new window]

Abstract

An experimental study was conducted to analyse the pressure distribution along the floor of a cavity, with and without the presence of an upstream tandem cavity, at a constant freestream Mach number of about 0-911. Measurements were made for single cavities and the results compared with those obtained in the presence of an upstream tandem cavity. This comparison was made over a wide range of geometries, covering open to closed classes of cavities with both identical and different dimensions for the two cavities. The effect of the spacing between the two cavities was also studied. The downstream cavity is shown to be significantly affected by the presence of an upstream cavity, with both the overall net static pressure and its gradient being affected, dependent upon the class of cavity geometry and spacing under consideration.

Type
Research Article
Information
The Aeronautical Journal , Volume 105 , Issue 1045 , March 2001 , pp. 119 - 124
Copyright
Copyright © Royal Aeronautical Society 2001 

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

References

1. Rockwell, D. and Naudascher, E. Review — self-sustaining oscillations of impinging free shear layers, Ann Rev Fluid Mech, 1979, 11, pp 67–94.Google Scholar
2. Plentovich, E.B., Stallings, , Robert, R.L. and Tracey, M.B. Experimental cavity pressure measurements at subsonic and transonic speeds — static pressure results, NASA TP-3358, 1993.Google Scholar
3. Wright, M.C.N. Store separation from a wall mounted cavity in the ARA Z4 wind tunnel, ARA No SLS41B/2040, November 1990.Google Scholar
4. Rossiter, J.E. Wind-tunnel experiments on the flow over rectangular cavities at subsonic and transonic speeds, R&M No 3438, British Aeronautical Research Council, October 1964.Google Scholar

Bibliography

1. Bray, D. and Stuart, E. An Experimental Investigation into the Flow Fields of Tandem Cavities at Subsonic & Transonic Speeds. Report No DA PS/DB/18/97, Dept of Aerospace, Power and Sensors, Royal Military College of Science, Cranfield University.Google Scholar
2. Cattafesta, L.N. Kegerise, M.S. and Jones, G.S. Experiments on compressible flow-induced cavity oscillations, AIAA-98-2912,Google Scholar
3. Charwat, A.F., ROOS, J.N., DEWEY, F.R. and HJTZ, J.A, An investigation of separated flows — Part I: The pressure field. J Aeronaut Sci. June 1961.28. (6), pp 457–440.Google Scholar
4. Dix, R.E. Cavity aeroacoustics. Store carriage, integration and release, R Aeronautical Society, 1990. pp 4.1–4.34.Google Scholar
5. Hankey, W.L. and Shang, J.S. Analyses of pressure oscillations in an open cavity, A1AA-79-0I36.Google Scholar
6. Heller, H.H., Holmes, D.G. and Covert, E.E. Flow-induced oscillations in shallow cavities, J Sound and Vibration, 1971, 18, (4), pp 545–553.Google Scholar
7. Jovic, S. An experimental study of a separate/reattached flow behind a backward-facing step. Re,, = 37,000, NASA TM-U0384, April 1996.Google Scholar
8. Plentovich, E.B. Three-dimensional cavity flow fields at subsonic and transonic speeds, NASA TM-4209, 1990.Google Scholar
9. Rockwell, D. Oscillations of impinging shear layers, AIAA-82-OO47.Google Scholar
10. Sakamoto, K. and Matsunaga, K. Experimental investigation of supersonic internal cavity flows, AIAA-95-2213.Google Scholar
11. Sarowa, V, Experimental investigations of oscillations in flows over shallow cavities, A1AA-76-182,Google Scholar
12. Taborda, N., Knowles, K. and Bray, D. An Experimental Investigation of Transonic Flow over Two Tandem Cavities, July 1998, Department of Aerospace Power and Sensors, Royal Military College of Science, Cranfield University (UKJAJniversidade da Beira Interior (Portugal),Google Scholar
13. Tracey, M.B. and Plentovich, E.B. Cavity Unsteady-Pressure Mea surements at Transonic Speeds, NASA TP-3669, December 1997.Google Scholar
14. Tracey, M.B. and Plentovich, E.B. Characterisation of cavity flow fields using pressure data obtained in the Langley 0-3-meter transonic cryogenic tunnel, NASA TM-4436, 1993.Google Scholar
15. Tracey, M.B. and Plentovich, E.B. Measurements of fluctuating pressure in a rectangular cavity in transonic flow at high Reynolds numbers, NASA TM-4363, 1992.Google Scholar
16. WilcoxF,J. F,J. Experimental measurements of internal store separation characteristics at supersonic speeds. Store carriage, integration and release, R Aeronautical Society, 1990, pp 5.1–5.16.Google Scholar
17. Wright, M.C.N. Store separation from a wall mounted cavity in the ARA Z4 wind tunnel, ARA No SLS41 B/2040, November 1990.Google Scholar
18. Zhang, X, An Experimental and Computational Investigation into Supersonic Shear Layer Driven Single and Multiple Cavity Flowfields over Two Cavities in Tandem. PhD Thesis, Depl of Engineering, Cambridge Univ, Cambridge, UK, 1987,Google Scholar
19. Zhang, X. and Edwards, J.A. Experimental investigation of supersonic flow over two cavities in tandem, AIAA J,May 1992,30, (5).Google Scholar
20. Zhang, X. and Edwards, J.A, Pressure over a dual-cavity cascade at supersonic speeds. Aeronaut /, January 1999, 103, (1019), pp 45–54,Google Scholar