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Aerodynamic Interaction Between Two Spheres at Reynolds Numbers Around 104

Published online by Cambridge University Press:  07 June 2016

K.C. Lee
K.C. Lee*
Affiliation:
Department of Meohanioal Engineering, University of Auckland
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Summary

The behaviour of streams of solid particles when ejected into a fluid crossflow suggests that there are considerable forces caused by aerodynamic interaction between closely spaced particles. The overall effect is a dispersion of the solids normal to the fluid flow direction and a bunching up along the axis. This effect is apparent in aerial work where particulate solids are released from aircraft and also in dilute two phase flow especially at the onset of choking or saltation. The experimental work reported here contrives to measure these forces for spheres at the appropriate Reynolds numbers. The results are considered to be sufficiently accurate and comprehensive to give some understanding of the phenomena occurring and to permit an explanation, at least qualitatively, of the behaviour mentioned.

Type
Research Article
Information
Aeronautical Quarterly , Volume 30 , Issue 1 , February 1979 , pp. 371 - 385
Copyright
Copyright © Royal Aeronautical Society. 1979

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References

1 Schlichting, H.S. Boundary Layer Theory. Pergamon Press 1955 Google Scholar
2 Goldstein, S. Modern Developments in Fluid Dynamics, Vol. II - Dover Publications 1965 Google Scholar
3 Hoerner, S.F. Aerodynamic Drag. Otterbein Press 1951 Google Scholar
4 Jayaweera, K. and (et al) Part I. The Behaviour of Clusters of Spheres Falling in a Viscous Fluid Google Scholar
5 Hocking, L.M. Part 2. Slow motion theory. The Journal of Fluid Mechanics 1964, Vol. 20 Part 1.Google Scholar
6 Soo, S.L. Fluid Dynamics of Multi-phase Systems. Blaisdell Publishing Co. 1967 Google Scholar
7 Tanaka, Z. and Iinoya, K. New approximate equation of drag coefficient for spherical particles. Journal of Chemical Engineering of Japan, Vol. 3, No. 2 1970.CrossRefGoogle Scholar
8 Zdravkovich, M.M. Review of flow interference between two circular cylinders in various arrangements. Journal of Fluids Engineering, December 1977 (P618–633)CrossRefGoogle Scholar