Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-24T17:45:52.352Z Has data issue: false hasContentIssue false

The Lift on a Wing in a Turbulent Flow

Published online by Cambridge University Press:  07 June 2016

R Jackson
Affiliation:
Rolls-Royce 1971, Bristol
J M R Graham
Affiliation:
Aeronautics Department, Imperial College
D J Maull
Affiliation:
Cambridge University, Engineering Department
Get access

Summary

Experiments are described in which the lift on a rectangular element of a two-dimensional wing and on a finite aspect ratio wing has been measured in grid turbulence. By measuring the spectrum of the lift and the spectrum of the turbulence upwash component, an experimental value for the turbulent admittance may be found. This is compared with a calculated value based upon linearised theory.

Type
Research Article
Copyright
Copyright © Royal Aeronautical Society. 1973

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 Sears, W R Some aspects of non-stationary airfoil theory and its practical applications. Journal of the Aeronautical Sciences, Vol 8, pp 104-108, 1941.CrossRefGoogle Scholar
2 Kármán, Th von Sears, W R Airfoil theory for non-uniform motion. Journal of the Aeronautical Sciences, Vol 5, pp 379-390, 1938.Google Scholar
3 Liepmann, H W On the application of statistical concepts to the buffeting problem. Journal of the Aeronautical Sciences, Vol 19, pp 793-800, 1952.Google Scholar
4 Liepmann, H W Extension of the statistical approach to buffeting and gust response of wings of finite span. Journal of the Aeronautical Sciences, Vol 22, pp 197-200, 1955.CrossRefGoogle Scholar
5 Ribner, H S Spectral theory of buffeting and gust response unification and extension. Journal of the Aeronautical Sciences, Vol 23, pp 1075-1077, 1956.Google Scholar
6 Graham, J M R Lifting-surface theory for the problem of an arbitrarily yawed sinusoidal gust incident on a thin aerofoil in incompressible flow. Aeronautical Quarterly, Vol XXI, pp 182-198, 1970.Google Scholar
7 Graham, J M R A lifting-surface theory for the rectangular wing in non-stationary flow. Aeronautical Quarterly, Vol XXII, pp 83-100, 1971.CrossRefGoogle Scholar
8 Filotas, L T Theory of airfoil response in a gusty atmosphere. Part I - Aerodynamic transfer function. University of Toronto Institute for Aerospace Studies, UTIAS Report 139, 1969.Google Scholar
9 Filotas, L T Theory of airfoil response in a gusty atmosphere. Part II - Response to discrete gusts or continuous turbulence. University of Toronto Institute for Aerospace Studies, UTIAS Report 141, 1969.Google Scholar
10 Lamson, P Measurements of lift fluctuations due to turbulence. NACA TN 3880, 1957.Google Scholar
11 Hakkinen, R J Richardson, A S Theoretical and experimental investigation of random gust loads, Part I – Aerodynamic transfer function of a simple wing configuration in incompressible flow. NACA TN 3878, 1957.Google Scholar
12 Maeda, H Kobayakawa, M Studies on the gust response of a wing, Part I – Response of a two-dimensional rigid wing. Memoirs of the Faculty of Engineering Kyoto University, Vol XXXII, p 379404, 1970.Google Scholar
13 Jackson, R The loading of rectangular wings in unsteady flows. Ph D Thesis, Cambridge University, 1970.Google Scholar
14 Kinns, R Oscillations of an aerofoil in a vortex wake. Ph D Thesis, Cambridge University, 1971.Google Scholar
15 Harris, R I Unpublished report. The Electrical Research Association.Google Scholar
16 Vickery, B J On the flow behind a coarse grid and its use as a model of atmospheric turbulence in studies related to wind loads on buildings. NPL Aero Report 1143.Google Scholar