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A Method of Measuring the Concentration of Certain Polymers in Dilute Aqueous Solutions

Published online by Cambridge University Press:  04 July 2016

Y. Goren
Affiliation:
Northrop Norair, Hawthorne, California
P. O. Kane
Affiliation:
ICI Limited, Mond Division, Research Dept, Runcorn
J. F. Norbury
Affiliation:
Dept of Mechanical Engineering, University of Liverpool

Extract

A technique has been devised for measuring the concentration of “Polyox” in dilute aqueous solutions. “Poly-ox”* is one of those polymers whose addition to water in low concentrations causes a reduction in skin friction (if the Reynolds number is sufficiently high) in turbulent flow through a pipe or boundary layer. (See, for example, ref. 1.) The analytical method is probably applicable to other polymers having this property, and it should be generally useful in this field of research. For example, in any experiment in which a polymer solution is injected at a point in a boundary layer, the method could be used to determine the distribution of polymer concentration at downstream sections. It is based on polarography, a well-established tool of chemical analysis of which an excellent account is given in ref. 2.

Type
Technical Notes
Copyright
Copyright © Royal Aeronautical Society 1967

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References

1.Gadd, G. E.Turbulence Damping and Drag Reduction Produced by Certain Additives in Water. Nature, Vol 206, No 4983, pp 463467, May 1965.Google Scholar
2.Müller, O. H.Polarography, 1960, Physical Methods of Organic Chemistry, Part IV, Chapter 48, pp 31553279. Ed. Weissberger, A.. Interscience Publishers Inc, New York.Google Scholar