Abstract
The paper presents results of modeling of Hershel-Bulkley fluid flows through an eccentric cylindrical channel. The effect of inner cylinder rotation and eccentricity on flow characteristics (hydrodynamic channel resistance, flow pattern, stresses, etc.) is studied and it is demonstrated that, for a number of cases, the turbulence caused by the inner cylinder rotation results in reduction of the channel resistance. Moreover, certain relations of axial and rotational Reynolds numbers result in flows, where laminar and turbulent regions are present at the same time.
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