Question

For concentrated slurry systems, what are factors which must be considered for the particle settling velocity? (in 150 words or less)

Answer 1

The particle size in slurries can be considered to be very small in the range of micro meters, which means that the laminar region can be taken into consideration, which is governed by the stokes law.

In stokes law regime the terminal velocity can be given as follows.

from this equation we can say that the factors influencing the terminal settling velocity are as follows

Diameter of the particle,density or concentration of the particles, fluid density. The viscosity of the fluid has an inverse effect on the terminal settling velocity or settling velocity.