Abstract
FRICTION in turbulent flow can be reduced by the addition of small quantities of soluble polymers of high molecular weight. It has been suggested that the effect is connected with non-Newtonian properties of the solutions such as a shear dependent viscosity or viscoelasticity. In solutions of the concentrations which exhibit drag reduction, however, no shear dependence of viscosity has been observed.
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References
Rubin, M., and Elata, C., Phys. Fluids, 9, 1929 (1966).
Song, C. S., and Tsai, F. Y., Univ. Minnesota, St Anthony Falls Hydraulic Lab. Proj. Rep. No. 84 (1966).
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BAILEY, B. Behaviour of the Critical Taylor Number in Dilute Polymer Solutions. Nature 222, 373–374 (1969). https://doi.org/10.1038/222373a0
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DOI: https://doi.org/10.1038/222373a0
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