Slurry Flow in Process Plant Piping

The concentration of the solids in the slurry determines the slurry rheology or viscosity. This property is 

Newtonian slurries are simple rheological property viscosities, and can be treated as true fluids as long as the flowing velocity is sufficient to prevent the dropout of solids. For this type of slurry, the viscosity = p. 

Bingham-plastic slurries require a shear stress diagram showing shear rate vs. shear stress for the slurry in order to determine the coefficient of rigidity, T, which is the slope of the plot at a particular concentration. This is laboratory data requiring a rheometer. These are usually fine solids at high concentrations. 

Reference [25] has two practical in-planL design examples worked out. 

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