RESEARCH METHOD OF AGGREGATE GRAVITATIONAL SETTLING OF SOLID PARTICLES IN LIQUIDS Russian patent published in 2017 - IPC G01N15/04 

FIELD: physics.

SUBSTANCE: invention relates to the development of the methods and devices for the laboratory investigations of the physical processes, in particular for the study of the aggregate movement patterns of the solid particles in a liquid medium under their gravitational settling. The particles are previously wetted with an aqueous glycerin solution and are placed on a plate like a compact packed layer in the form of a spherical segment. The plate with the layer of particles directed down, is placed in a cuvette with a liquid. Herewith, content of glycerine in the solution is selected in the range of (95-99) wt %, and the diameter of D particles and the side b of the square cuvette base are selected in accordance with the inequalities where D - the diameter of the particles (mm); - the material density of the particles (kg / m³); b - the side of the square cuvette base (m); d - the base diameter of the layer spherical segment of the particles (m). The initial aggregate concentration of the particles in the layer is determined by the algebraic formula, and the change of the shape, size and rate of the cloud settling from the aggregate of the particles is determined with the help of the 2-angle speed video recording.

EFFECT: invention provides increased accuracy in determining the basic characteristics of the aggregate gravitational settling of the particles in a liquid with the predetermined initial concentration and with zero initial speed.

5 dwg, 2 tbl