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Experiments on the flow past an inclined disk

Published online by Cambridge University Press:  28 March 2006

J. R. Calvert
J. R. Calvert
Affiliation:
Cambridge University Engineering Department
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Abstract

The wake of a disk at an angle to a stream contains marked periodic motions which arise from the regular shedding of vortices from the trailing edge. The vortices are in the form of a chain of irregular rings, each one linked to the succeeding one, and they move downstream at about 0·6 of free-stream velocity. The prominence of the vortex shedding increases as the angle of incidence (measured from the normal) increases up to at least 50°. The shedding frequency increases with the angle of incidence, but by a suitable choice of reference velocity and length scale, may be described by a wake Strouhal number which has the constant value 0·21 for all angles of incidence above zero, up to at least 40°.

Axially-symmetric bodies at zero incidence shed vortices in a similar manner, except that the orientation of the plane of vortex shedding is not fixed and varies from time to time.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 29 , Issue 4 , 27 September 1967 , pp. 691 - 703
Copyright
© 1967 Cambridge University Press

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References

Calvert, J. R. 1967 Experiments on the low speed flow past cones J. Fluid Mech. 27, 273.Google Scholar
Eden, C. G. 1912 Investigation by visual and photographic methods of the flow past plates and models. A.C.A. R & M 58.Google Scholar
Fail, R., Lawford, J. A. & Eyre, R. C. W. 1959 Low speed experiments on the wake characteristics of flat plates normal to an air stream. A.R.C. R & M 3120.Google Scholar
Hoerner, S. F. 1965 Fluid Dynamic Drag. Published by the author (p. 3. 16).
Rosenhead, L. 1932 Appendix to Stanton & Marshall (1932). A.R.C. R & M 1358.Google Scholar
Stanton, T. E. & Marshall, D. 1932 On the eddy system in the wake of flat circular plates in three dimensional flow. A.R.C. R & M 1358. Also 1931 Proc. Roy. Soc. A 130, 295.Google Scholar