Blending

Static Mixers

Blending in a static mixer can be directly related to a series of dimensionless numbers that can be used to describe blending characteristics.

Blending Basic Functions
Blending Calculation

Where Re = Reynolds Number

μ = Absolute Viscosity

μ 1/μ 2 = Viscosity Ratio of Unmixed Streams

ρ 1/ρ 2 = Density Ratio of Unmixed Streams

V1/V2= Volumetric Ratio of Unmixed Streams

v = Shear Rate

n = Number of Elements

L/D = Element Length to Diameter Ratio

Inj. = Injection Method of Additive Stream

Static Mixers as Compared to Agitators

A nice summary table comparing Static Mixers vs. Agitators.

Comparison Between Agitator and Static Mixer