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Selected Aspects of the Aerodynamics of Rotorcraft

Published online by Cambridge University Press:  04 July 2016

A. E. Clarke  and
A. R. S. Bramwell
A. E. Clarke
Affiliation:
Helicopters, MinTech
A. R. S. Bramwell
Affiliation:
City University, London
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Extract

Both the authors have been members of a small Helicopter Research Team at the Royal Aircraft Establishment, whose main activities in recent years have already been described in papers presented at the V/STOL Loading Action Symposia held at Buffalo and Southampton in 1963 and 1965 respectively. It is a matter of regret that the size of this team, and indeed of corresponding teams elsewhere in Britain, has been such that significant reports could not be made more frequently. However, progress in research has been rapid elsewhere, particularly in the USA, and there has been a noticeable trend recently for changes in helicopter design. Hence, the Rotorcraft Section Committee requested a general survey of current rotorcraft aerodynamics. This is the object of the present paper, in which the findings of many workers in Western countries have been included. Even so, there will be omissions because the authors will not comment on subjects with which they have had no first-hand experience: rotor blade flutter and divergence is a notable omission on which there have been advances recently by the Massachusetts Institute of Technology and Southampton University.

Type
Supplementary Papers
Information
The Aeronautical Journal , Volume 72 , Issue 686 , February 1968 , pp. 178 - 186
Copyright
Copyright © Royal Aeronautical Society 1968 

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References

1. Lock, C. N. H. The Application of Goldstein's Theory to the Practical Design of Airscrews. R and M 1377, 1930.Google Scholar
2. Goldstein, S. On the Vortex Theory of Screw Propellers. Proc Roy Soc A, Vol 123, p 440, 1929.Google Scholar
3. Brotherhood, P. Flow Through a Helicopter Rotor in Vertical Descent. R and M 2735, 1949.Google Scholar
4. Hafner, R. Rotor Systems and Control Problems of the Helicopter. First Anglo-American Aeronautical Conference, London, 1947. RAeS, 1948.Google Scholar
5. Gessow, A. Review of Information on Induced. Flow of a Lifting Rotor. NACA TN 3238, 1954.Google Scholar
6. Glauert, H. A General Theory of the Autogyro. R and M No 1111, 1926.Google Scholar
7. Mangler, K. W. and Squire, H. B. The Induced Velocity Field of a Rotor. R and M No 2642, 1953.Google Scholar
8. Tararine, S. Experimental and Theoretical Study of Local Induced Velocities over a Rotor Disc. CAL/TRECOM Symposium, Buffalo, NY, June 1963.Google Scholar
9. Willmer, M. A. P. The Loading of Helicopter Blades in Forward Flight. R and M 3318, 1963.Google Scholar
10. Miller, R. H. Unsteady Air Loads on Helicopter Rotor Blades. Fourth Cierva Memorial Lecture. Journal of the Royal Aeronautical Society, April 1964.Google Scholar
11. Piziali, R., Daughaday, H. and Duwaldt, F. Rotor Air-loads. CAL/TRECOM Symposium, Buffalo, June 1963.Google Scholar
12. Piziali, R. Method of Solution of the Aeroelastic Response Problem for Rotating Wings. Symposium on Noise and Loading Actions on Helicopter, V/STOL Aircraft and Ground Effect Machines, University of Southampton, September 1965.Google Scholar
13. Bell Helicopter Co. Measurement of Dynamic Airloads on Full Scale Semi-Rigid Rotor. TC REC Tech Report 62-42, 1962.Google Scholar
14. Scheiman, J. A Tabulation of Helicopter Rotor Blade Differential Pressures, Stress and Motion as Measured in Flight. NASA TM X-952, 1964.Google Scholar
15. Bramwell, A. R. S., Wilde, E. and Johnstone, J. B. B. Comparison of Theoretical and Experimental Determination of Helicopter Rotor Characteristics with Particular Reference to High Blade Incidence Conditions. RAE Report TR 66139, April 1966.Google Scholar
16. Harrison, J. M. and Ollerhead, J. B. The Nature of Limitations Imposed on the Performance of a Helicopter Rotor. Symposium on Noise and Loading Actions on Helicopter, V/STOL Aircraft and Ground Effect Machines, University of Southampton, September 1965.Google Scholar
17. Mckee, J. W. and Naeseth, R. L. ExDerimental Investigation of the Drag of Flat Plates and Cylinders in the Slipstream of a Hovering Rotor. NACA TN 4239, April 1958.Google Scholar
18. Ward, J. F. A Summary of Hingeless Rotor Structural Loads and Dynamics Research. Symposium on Noise and Loading Actions on Helicopter, V/STOL Aircraft and Ground Effect Machines, University of Southampton, September 1965.Google Scholar