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On the Length of Two-Dimensional Contractions

Published online by Cambridge University Press:  04 July 2016

W. T. F. Lau*
Affiliation:
formerly Department of Mechanical Engineering, University of Sydney, now Department of Mathematics, University of Newcastle

Extract

In a recent paper, Gibbings has made an interesting comparison of the length of two-dimensional contractions based on three criteria, namely:

  1. (1) the rapidity with which the boundary slope approaches its zero value;

  2. (2) the rapidity with which the centre-line velocity approaches its asymptotic value; and

  3. (3) the degree of uniformity of the velocity expressed as a percentage of its mean value.

Type
Technical Notes
Copyright
Copyright © Royal Aeronautical Society 1966

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References

1. Gibbings, J. C. The Choice of a Hodograph Boundary for Contracting Ducts. Journal of the Royal Aeronautical Society, Vol. 68, No. 642, p. 420, June 1964.Google Scholar
2. Lau, W. T. F. An Analytical Method for the Design of Two-Dimensional Contractions. Journal of the Royal Aeronautical Society, Vol. 68, No. 637, p. 59, January 1964.Google Scholar