Power Consumption of Mixing Impellers in Bingham Plastic

Abstract

Power consumption of mixing impellers has been described as the relation of power number Np and Reynolds number Re for Newtonian fluids.
In this paper, the generalized Reynolds number Re for Bingham plastic fluids has been introduced from a theoretical consideration of the energy integral of the momentum equation for the flow system.
This generalized Reynolds number is expected to play the same role as Reynolds number for Newtonian fluids.
As a result, good correlations of Re and Np for mixing in Bingham plastic fluids have been obtained, the same as for the relation of Re and Np for Newtonian fluids.