Scale-up criterion of turbulent flows of dilute polymer solutions and a generalized dependence of the friction coefficient (Q1304571)
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scientific article; zbMATH DE number 1340004
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Scale-up criterion of turbulent flows of dilute polymer solutions and a generalized dependence of the friction coefficient |
scientific article; zbMATH DE number 1340004 |
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Scale-up criterion of turbulent flows of dilute polymer solutions and a generalized dependence of the friction coefficient (English)
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13 August 2000
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Dilute polymer solutions that reduce turbulent friction are treated as viscoelastic liquids for which, in addition to the Reynolds number, the scale-up criteria include the Deborah or elasticity number. Introduction of a generalized (viscoelastic) Reynolds number makes it possible to reduce the experimental curves for the drag coefficients obtained in pipes of various diameters at different concentrations to a unified dependence.
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pipe flow
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diameter and concentration effects
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generalized (viscoelastic) Reynolds number
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dilute polymer solutions
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turbulent friction
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drag coefficients
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0.8989674
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0.8930943
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0.88694614
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0.88241047
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0.88107026
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0.8745196
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