Material systems without density and viscosity differences

Material Systems Without Density and Viscosity Differences 

The target quantity of this stirring operation, the mixing time 6 or 0m - in the following for the sake of simplicity shortened to 0 - depends, for a material system without density and viscosity differences and for a particular stirrer type under given geometric conditions, only upon the characteristic measurement of length (stirrer diameter d), both material parameters (density p and kinematic viscosity v) and the stirrer speed n  

This dependence is condensed into a dimensionless form by the relationship  

Viewed in this way, it would have been more favorable, if in the case of the homogenization characteristic the term 

By way of example, in Fig. 3.3 the mixing time characteristic of a blade stirrer is 

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