Dispersion in pipe with static mixer

Streiff [528] found the following dispersion characteristic for the dispersion in the Sulzer SMV mixer of a number of low viscosity material systems (continuous phase water, dispersed phase gasoline, kerosene, toluene, cyclohexane, air)  

In the laminar flow range, it depends upon WeRe this number combination can by the incorporation of dp be transformed to 

Theoretical stability analysis as well as measurements on individual droplets have shown, that depends upon the viscosity ratio in the range Hi/n 0.1  

Investigations [126] of the suitability of a SMX mixer for dispersing a material system with extreme viscosity difference (1% silicone oil with 40 mPa s in a polymer melt of 400 Pa s, thus = 10 ) have resulted in droplet sizes of only a few pm. 

The required desintegration time Ib for this can be calculated using the relationship 

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