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On the Application of Linearized Theory to Multi-Element Aerofoils Part I: Tandem Flat Plate Aerofoils

Published online by Cambridge University Press:  07 June 2016

G.D. Watt  and
G.V. Parkinson
G.D. Watt
Affiliation:
Department of Mechanical Engineering, The University of British Columbia, Vancouver
G.V. Parkinson
Affiliation:
Department of Mechanical Engineering, The University of British Columbia, Vancouver
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Summary

A linearized two-dimensional incompressible potential flow theory for two-element uncambered tandem aerofoil sections is developed. It leads to formulas for lift and moment which can be calculated rapidly on a programmable hand calculator, and which reduce, when the two aerofoil elements come together, to the familiar thin-aerofoil formulas for an aerofoil with a simple flap. The theory is shown to give lift and moment predictions which are in good agreement with predictions of numerical potential flow theory.

Type
Research Article
Information
Aeronautical Quarterly , Volume 34 , Issue 1 , February 1983 , pp. 46 - 60
Copyright
Copyright © Royal Aeronautical Society. 1983

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References

1 Glauert, H. The Elements of Aerofoil and Airscrew Theory, Cambridge, 1926 Google Scholar
2 Stewart, H.J. A simplified two-dimensional theory of thin airfoils. Journal of the Aeronautical Sciences, Vol. 9, No. 12, pp 452-456, October 1942 Google Scholar
3 Munk, M.M. General biplane theory. NACA Report No. 151, 1922 Google Scholar
4 Garrick, I.E. Potential flow about arbitrary biplane wing sections. NACA Report No. 542, 1936 Google Scholar
5 Theodorsen, T. Theory of wing sections of arbitrary shape. NACA Report No. 411, 1931 Google Scholar
6 Williams, B.R. An exact test case for the plane potential flow about two adjacent lifting aerofoils. A.R.C.R. & M. No. 3717, 1973 Google Scholar
7 Halsey, N.D. Potential flow analysis of multielement airfoils using conformai mapping. AIAA Journal, Vol. 17, No. 12, pp 1281-8, December 1979 Google Scholar
8 Legendre, R. Vibrations de plusieurs obstacles au sein de l’ecoulement plan d’un fluide incompressible. La Recherche Aerospatiale, No. 1, pp 1-8, January 1980 Google Scholar
9 Whittaker, E.T. and Watson, G.N. A Course of Modern Analysis. 4th Edition, Cambridge, 1927 Google Scholar
10 Kennedy, J.L. The Design and Analysis of Airfoil Sections. Ph.D. Thesis, University of Alberta, Spring 1977 Google Scholar