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Flow visualisation on rolling models using minitufts

Published online by Cambridge University Press:  04 July 2016

C. O. O'Leary  and
W. Drew
C. O. O'Leary
Affiliation:
Royal Aircraft Establishment, Bedford
W. Drew
Affiliation:
Royal Aircraft Establishment, Bedford
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Summary

Minitufts are increasingly used for flow visualisation on static wind tunnel models because they can be applied in larger numbers for increased detail and with less interference compared with conventional tufts. This Memorandum describes an extension of their use to continuously rotating models where the heavier conventional tufts are inadequate.

Tests on two combat aircraft models in the 4 m x 2.7 m Low Speed Wind Tunnel are described. Measured variations of rolling moment are explained with the aid of the minituft photographs.

Type
Research Article
Information
The Aeronautical Journal , Volume 91 , Issue 906 , July 1987 , pp. 269 - 274
Copyright
Copyright © Royal Aeronautical Society 1987 

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References

1. Mabey, D. G. and Chambers, J. R. Technical evaluation report on: unsteady aerodynamics — fundamentals and applications to aircraft dynamics. AGARD-AR-222, 1986.Google Scholar
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3. Dobney, D. G., Hanson, P. and Fiddes, S. P. The ‘minituft’ surface flow visualisation method; experience of use in the RAE 5 m pressurisedLow Speed Wind Tunnel.RAE Technical Memorandum Aero 2038.Google Scholar
4. O'Leary, C. O. Dynamic tests on a high incidence research model (HIRM) in a Low Speed Wind Tunnel. RAE Technical Report 84111, 1984.Google Scholar