Drag of Spheres in Dilute High Polymer Solutions

Abstract

WHITE1 showed that the drag on spheres in water, at Reynolds numbers exceeding the critical value (vd/ν > about 2 × 105), could be increased by dissolving a very small quantity of polyethylene oxide (Union Carbide ‘Polyox WSR301’) in the water, and suggested that this effect resulted from suppression of turbulence in the boundary layer by the additive, which caused earlier separation and a corresponding increase in the wake size.

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References

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WHITE, A. Drag of Spheres in Dilute High Polymer Solutions. Nature 216, 994–995 (1967). https://doi.org/10.1038/216994b0

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