Figure 4

Curves of the change in the borders of separation between fluid and mixture as a function of time, when values of total velocity of aggregation are different. k : 1 - k = 5·10^-7; 2 - k = 1·10^-6; 3 - k = 5·10^-7; 4-experimental curve corresponds to rheumatism; 5 - k = 1·10^-5; 6 - k = 5·10^-5. Dotted curves match the results of equations (86), with the border conditions (89) and (90). Horizontal axis: time (minutes); vertical axis: the height of the tube, millimeters.