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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
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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 

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