Hostname: page-component-84b7d79bbc-2l2gl Total loading time: 0 Render date: 2024-07-27T04:08:02.479Z Has data issue: false hasContentIssue false
  • English
  • Français

Wall jets created by single and twin high pressure jet impingement

Published online by Cambridge University Press:  04 July 2016

P. Miller  and
M. Wilson
P. Miller
Affiliation:
Miller and Wilson Aerodynamics Research, Bath, UK
M. Wilson
Affiliation:
Miller and Wilson Aerodynamics Research, Bath, UK
Get access Rights & Permissions [Opens in a new window]

Summary

An extensive experimental investigation into the nature of the wall jets produced by single and twin normal jet impingement has been undertaken. Wall jet velocity profiles have been recorded up to 70 jet diameters from the impingement point, at pressures representative of current VStol technology. The tests used fixed convergent nozzles, with nozzle height and spacing and jet pressure being varied. Single jet impingement displays a consistent effect of nozzle height on wall jet development. For twin jet cases a powerful reinforcement exists along the wall jet interaction plane. Remote from the interaction plane the wall jets are weaker than those produced by a single jet impingement.

Type
Research Article
Information
The Aeronautical Journal , Volume 97 , Issue 963 , March 1993 , pp. 87 - 100
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.)

References

1. Barron, W. A. and Palcza, J. L. Jet-induced thermal effects for Vtol aircraft, ASME Paper 75-GT-96, 1975.Google Scholar
2. Knott, P. G. The ground environment created by high specific thrust vertical land aircraft, SAE Paper 872309, 1987.Google Scholar
3. Miller, P. and Wilson, M. An Experimental Study of Wall Jets Produced by Single and Twin Jet Impingement with Application to VStol Flowfields, Miller and Wilson Aerodynamics Research Report MW-TR-89-19, 1989.Google Scholar
4. Miller, P. and Wilson, M. A Study of VSTOL Flowfields Produced by Normal and Inclined High Pressure Jet Impingement. Miller and Wilson Aerodynamics Research Report MW-TR-91-35, 1991.Google Scholar
5. Rajaratnam, N. Turbulent Jets, Elsevier, Amsterdam, 1976, pp 226–239.Google Scholar
6. Poreh, M., Tsuei, Y. G. and Cermak, J. E. Investigation of a turbulent radial wall jet, J Appl Mech, June 1967, 34, (3), pp 457–463.Google Scholar
7. Hrycak, P., Lee, D. T., Gauntner, J. W. and Livingood, J. N. B. Experimental flow characteristics of a single turbulent jet impinging on a flat plate, NASA TN D-5690, 1970.Google Scholar
8. Gray, L. and Kisielowski, E. Practical Engineering Methods for Predicting Hot Gas Reingestion Characteristics of VStol Aircraft Jet-Lift Engines. NASA CR-111845, 1971.Google Scholar
9. Knowles, K. and Bray, D. The ground vortex formed by impinging jets in cross-flow. AIAA Paper 91-0768, 1991.Google Scholar
10. Lavi, R. Parametric investigation of Vtol ground proximity effects, AIAA Paper 67-440, 1967.Google Scholar
11. Curtis, P. Investigation of a Single Jet in Free Air and Impinging Perpendicularly on the Ground — Phase II, British Aerospace Report BAe-KAE-R-RES-3607, 1990.Google Scholar
12. Donaldson, C. D. and Snedeker, R. S. A study of free jet impingement. Part 1. Mean properties of free and impinging jets, J Fluid Mech, January 1971, 45, (2), pp 281–319.Google Scholar
13. Araujo, S. R. B., Duråo, D. F. G. and Firmino, F. J. C., Jets impinging normally and obliquely to a wall, AGARD CP-308, Paper 5, 1981.Google Scholar
14. Milford, C. M. and Stapleton, N. T. Some Aspects of Self-Preserving Jet Flows, British Aerospace Report BAe-KAD-N- GEN-2884, 1982.Google Scholar
15. Abbott, W. A. Studies of flow fields created by vertical and inclined jets when stationary or moving over a horizontal surface, Aeronautical Research Council ARC CP 911, 1964.Google Scholar
16. Ryan, P. E., Heim, R. J. and Cosgrove, W J, A Generalized Investigation of Hot Gas Recirculation and Ingestion for Jet VTOL Aircraft. NASA CR-1147, 1968.Google Scholar
17. Hall, G. R. and Rogers, K. H., Recirculation Effects Produced by a Pair of Heated Jets Impinging on a Ground Plane. NASA CR-1307, 1969.Google Scholar
18. Spong, E. D., Kamman, J. H., Hall, C. L. and Seiffert, E. T., VStol aircraft configuration effect on exhaust gas ingestion, AIAA Paper 79-1284, 1979.Google Scholar
19. Aulehla, F. and Kissel, G. K., Experience with high performance VStol fighter projects at MBB, AIAA Paper 81-2614, 1981.Google Scholar
20. Miller, P. and Greenwell, D. The High Pressure Jet Impingement Facility: Mechanical, Instrumentation and Data Acquisition Aspects. Miller and Wilson Aerodynamics Research Report MW-TR-90-32, 1990.Google Scholar
21. Lepicovsky, J. Total temperature effects on centerline Mach number characteristics of freejets, AIAA J, March 1990, 28, (3), pp 478–482.Google Scholar
22. Elbanna, H. and Sabbagh, J. A. Flow visualization and measurements in a two dimensional two-impinging-jet flow, AIAA J, April 1989, 27, (4), pp 420–426.Google Scholar
23. McGuirk, J. J., Page, G. J., Sakellariou, N., Flitcroft, J. E., Abbott, W. A., White, D. R. and Tattersall, P. Prediction and measurement of jet flowfield features for ASTOVL aircraft. RAeS/SAE International Powered Lift Conference, Paper III.6, London, 1990.Google Scholar
24. Norum, T. D. and Shearin, J. G., Dynamic loads on twin jet exhaust nozzles due to shock noise, J Aircr, September 1986, 23, (9), pp 728–729.Google Scholar
25. Seiner, J. M., Manning, J. C. and Ponton, M. K. Dynamic pressure loads associated with twin supersonic plume resonance. AIAA J, August 1988, 26, (8), pp 954–960.Google Scholar
26. Shaw, L. Twin-jet screech suppression, J Aircr, August 1990, 27, (8), pp 708–715.Google Scholar
27. Wlezien, R. W. Nozzle geometry effects on supersonic jet interaction. AIAA J, October 1989, 27, (10), pp 1361–1367.Google Scholar
28. Gutmark, E., Schadow, K. C. and Bicker, C. J. Mode switching in supersonic circular jets, AIAA Paper 88-3610, 1988.Google Scholar
29. Glass, D. R. Effects of acoustic feedback on the spread and decay of supersonic jets, AIAA J, October 1968, 6, (10), pp 1890–1897.Google Scholar
30. Ponton, M. K. and Seiner, J. M. The effects of initial jet exit conditions on plume resonance, AIAA Paper 89-1054, 1989.Google Scholar
31. Olson, W. A., Miles, J. H. and Dorsch, R. G. Noise generated by impingement of a jet upon a large flat board, NASA TN D-7075, 1972.Google Scholar
32. Soderman, P. T. The prediction of STOVL noise — current semi-empirical methods and comparisons with jet noise data. RAeS/SAE International Powered Lift Conference, Paper III. 12, London, 1990.Google Scholar
33. Ahuja, K. K. and Spencer, D. A. Aero-acoustics of advanced STOVL aircraft plumes, SAE Paper 872358, 1987.Google Scholar
34. Norum, T. D. Ground impingement of supersonic jets from nozzles with various exit geometries, AIAA Paper 90-4015, 1990.Google Scholar