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The Design of Static and Pitot Static Tubes Jor Subsonic Speeds

Published online by Cambridge University Press:  28 July 2016

D. J. Kettle
D. J. Kettle*
Affiliation:
Royal Aircraft Establishment
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Extract

The design of the static and pitot static tubes which are still in common use—such as the National Physical Laboratory standard head or the Prandtl tube, dates back some forty years (see Ref. 1). Before these tubes can be used it is necessary to calibrate them, using a replica of the instrument which is commonly regarded as the standard. This procedure assumes a perfect replica. Furthermore, the shape of the instrument head used hitherto (conical or hemispherical) is known to be aerodynamically poor and, as a consequence, the calibration factor varies unpredictably with wind speed, stream turbulence and Mach number.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 58 , Issue 528 , December 1954 , pp. 835 - 837
Copyright
Copyright © Royal Aeronautical Society 1954

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References

1. Pankhurst, R. C. and Holder, D. W. (1952). Wind Tunnel Technique. Pitman, London, 1952.Google Scholar
2. Küchemann, D. (1951). A Simple Rule for the Velocity Rise with Subsonic Mach Number on Ellipsoids of Revolution. Journal of the Aeronautical Sciences, Vol. 18, p. 770, November 1951.CrossRefGoogle Scholar
3. Kettle, D. J. Design and Calibration at Low Speeds of a Static Tube and Pitot Static Tube with Semi-ellipsoidal Nose Shapes. Unpublished R.A.E. work.Google Scholar
4. Spence, D. A. (1952). Growth of the Turbulent Wake Close Behind an Aerofoil at Incidence. A.R.C. Current Paper No. 125, May 1952.Google Scholar
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