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Home >> Mixing
Guide >> Static
Mixing Guide >> Blending >> Viscosity
Effects |
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Viscosity Effects
As the absolute viscosity increases, the pressure drop increases slightly in
turbulent flow, and is directly proportional to the viscosity in laminar flow.Increasing the viscosity also reduces the Reynolds number, which must then be
evaluated to ensure that the flow regime has not changed.
Other than its effect on Reynolds number and pressure drop the viscosity is
said not to effect the degree of blending. The main precaution is to ensure that
the static mixer has the correct number of elements based on the Reynolds
number.
The absolute viscosity does effect the scale of mixing. It is reduced by the
increasing viscosity, but partially offset by the increase in pressure drop.
This follows standard Kolmogroff’s theory of turbulence.
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