Hostname: page-component-77c89778f8-9q27g Total loading time: 0 Render date: 2024-07-18T22:01:28.698Z Has data issue: false hasContentIssue false
  • English
  • Français

A Method for Designing Wind Tunnel Contractions

Published online by Cambridge University Press:  28 July 2016

R. Harrop
Get access Rights & Permissions [Opens in a new window]

Summary

The contraction of a wind tunnel should be free from adverse pressure gradients, since this might cause boundary layer separation.

A wall contour has been designed for a circular cross-section contraction using incompressible flow theory. This gave a favourable pressure gradient at the beginning of the contraction where separation is likely to occur.

Appendix I compares the theory with experimental results obtained from a model of a proposed supersonic tunnel of which the contraction is rectangular in cross-section and which has been based on the results obtained in this report.

Type
Research Article
Information
The Aeronautical Journal , Volume 55 , Issue 483 , March 1951 , pp. 169 - 180
Copyright
Copyright © Royal Aeronautical Society 1951

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. Smith, R. H. and Wang, C. T. (1944). Contracting Cones Giving Uniform Throat Speeds. Journal of the Aeronautical Sciences, Vol. 11, October. 1944.CrossRefGoogle Scholar
2. Milne-Thomson, L. M. (1938). Theoretical Hydrodynamics, p. 487.Google Scholar
3. Jahnke, E. and Emde, F. (1928). Funktionentafeln mit Formeln und Kurven.Google Scholar
4. Lamb, H. (1924). Hydrodynamics (5th Edition), p. 219.Google Scholar
5. Maxwell, J. C. (1904). Treatise on Electricity and Magnetism, Vol. 2 (3rd Edition), p. 357.Google Scholar
6. Thwaites, B. (1946). On the Design of Contractions for Wind Tunnels. R.& M. 2278, March 1946.Google Scholar