Abstract
NUMEROUS workers have put forward models which attempt to explain the complex behaviour of drag reducing polymer solutions, but no explanation has been universally accepted. The ability of apparently identical batches of a polymer to give widely varying results has now been ascribed to variations in mixing procedures, though apparently no systematic investigation of the reason for such behaviour has been made. In the experiments reported here, concerning drag reduction in ‘Polyox WSR 301’ solutions and asbestos fibre dispersions, attention is focused on the differences in behaviour in large and small bore pipes and the changes in this behaviour brought about by shear thinning treatment.
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References
White, A., Hendon College of Technology, Res. Bull., No. 5, 113 (1968).
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ELLIS, H. Effects of Shear Treatment on Drag-reducing Polymer Solutions and Fibre Suspensions. Nature 226, 352–353 (1970). https://doi.org/10.1038/226352a0
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DOI: https://doi.org/10.1038/226352a0
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