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Some cavitation experiments with dilute polymer solutions

Published online by Cambridge University Press:  29 March 2006

Christopher Brennen
Christopher Brennen
Affiliation:
California Institute of Technology, Pasadena, California
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Abstract

Experiments on fully developed cavity flows were carried out with the prime initial objective of investigating the effects of the addition of small quantities of ‘turbulent drag reducing additive’ upon the cavity-surface boundary-layer instability and transition reported in the previous paper (Brennen 1970). However, in most instances, the additives were found to cause an unforeseen instability in the wetted surface flow around the headform. Upon convection, the resulting disturbances dramatically disfigured the cavity surface, thus negating the original purpose. This new phenomenon warranted investigation and became the principal subject of this paper.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 44 , Issue 1 , 21 October 1970 , pp. 51 - 63
Copyright
© 1970 Cambridge University Press

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References

Birkhoff, G. & Zarantonello, E. H. 1957 Jets, Wakes and Cavities. New York: Academic.
Bizzell, G. D. & Slattery, J. C. 1962 Non-newtonian boundary layer flow. Chem. Engng Sci. 17, 713.Google Scholar
Brennen, C. & Gadd, G. E. 1967 Ageing and degradation in dilute polymer solutions. Nature, Lond. 215, 1368.Google Scholar
Brennen, C. 1969a A numerical solution of axisymmetric cavity flows. J. Fluid Mech. 37, 671.Google Scholar
Brennen, C. 1969b Some viscous and other real fluid effects in fully developed cavity flows. Cavitation State of Knowledge. New York: ASME.
Brennen, C. 1970 Cavity surface wave patterns and general appearance. J. Fluid Mech. 44, 33.Google Scholar
Gadd, G. E. 1965 Turbulence damping and drag reduction produced by certain additives in water. Nature, Lond. 206, 463.Google Scholar
Gadd, G. E. 1968 Effects of drag-reducing additives on vortex stretching. Nature, Lond. 217, 1040.Google Scholar
Hoyt, J. W. 1966 Effect of high-polymer solutions on a cavitating body. Proc. 11th International Towing Tank Conference, Tokyo.Google Scholar
Hoyt, J. W. 1967 The influence of polymer-secreting organisms on fluid friction and cavitation. U.S. Naval Ordnance Test Station Report, NOTS TP 4364.Google Scholar
Nash, T. 1958 The interaction of some naphthalene derivatives with a cationic soap below the critical micelle concentration. J. Colloid. Sci. 13, 2.Google Scholar
Pfenninger, W. 1967 A hypothesis of the reduction of the turbulent friction drag in fluid flows by means of additives, etc. 4th Winter Meeting of the Society of Rheology.Google Scholar
Rubin, H. & Elata, C. 1966 Stability of Couette flow of dilute polymer solutions. Phys. Fluids, 9, 10.Google Scholar
Sanders, J. V. 1967 Drag coefficients of spheres in poly(ethylene oxide) solutions. Int. Ship. Prog. 14, 153.Google Scholar
Stuart, J. T. 1965 The production of intense shear layers by vortex stretching and convection. N.P.L. Aero. Rep., 1147.Google Scholar
White, A. 1967 Drag of spheres in dilute high polymer solutions. Nature, Lond. 216, 995.Google Scholar
White, A. 1968 Studies of the flow characteristics of dilute high polymer solutions. Bull. no. 5. Hendon College of Technology, Research.Google Scholar