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Conformational effects in drag reduction by polymers

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Abstract

AN earlier study of drag reduction by polyelectrolyte solutions1 revealed that the gross flow behaviour varied between extremes, termed types A and B, respectively characteristic of the collapsed and extended macromolecular conformations. Here I show, from examination of all available experiments1–5, that the crossover from type A to type B behaviour occurs at a characteristic conformation, which possibly reflects the role of macromolecular elasticity in the mechanism of drag reduction.

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References

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Authors and Affiliations

  1. Department of Chemical Engineering, Indian Institute of Technology, Madras, 600036, India

    P. S. VIRK

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  1. P. S. VIRK
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VIRK, P. Conformational effects in drag reduction by polymers. Nature 262, 46–47 (1976). https://doi.org/10.1038/262046a0

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  • DOI: https://doi.org/10.1038/262046a0

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