干渉沈降領域における懸濁粒子の沈降挙動 (第2報)

抄録

This is the second of a series of papers dealing with the solid-liquid sedimentation phenomena in the hindered settling range.
In the previous paper experiments were performed about the settling of closely sized olivine suspensions.
Apparent Stokes diameters and distribution density functions were calculated from the density curves which were obtained by the sedimentation density measurement apparatus.
Authors discussed about the hindered settling phenomena from the distribution changes with varied solid concentrations.
This report dealt with olivine suspensions with finer size range to obtain closely coincident results with the previous article.
Considering the equilibrium of resistivity and gravity force acting upon the settling particles, authors obtained mean hindered settling velosity, V, of particles, xm.
v= (ρs-ρl) g/18η·x²m.(9)
Xm is the arithmetic mean of the particle size for the relevant distribution density function.
The proposed equation was examined and compared in reference to the velocity values as given by literatures.