Flow Behavior and Turbulent Drag Reduction of Viscoelastic Fluids
نویسندگان
چکیده
منابع مشابه
Drag reduction in the turbulent Kolmogorov flow.
We investigate the phenomenon of drag reduction in a viscoelastic fluid model of dilute polymer solutions. By means of direct numerical simulations of the three-dimensional turbulent Kolmogorov flow we show that drag reduction takes place above a critical Reynolds number Re(c). An explicit expression for the dependence of Re(c) on polymer elasticity and diffusivity is derived. The values of the...
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ژورنال
عنوان ژورنال: Nihon Reoroji Gakkaishi
سال: 2014
ISSN: 0387-1533,2186-4586
DOI: 10.1678/rheology.41.289