ABSTRACT
It is interesting to analyze how the dynamic properties of fractal aggregates depend on their structure. Eq. 17 together with the mass-radius relation in the form
(29)
makes it possible to show how the free-falling speed of an aggregate depends on the aggregation number and the radius of the constituent particles
(30)
Fig. 4 Experimental data of free settling velocity of ferric black aggregates. The data are fitted by a straight line described by Eqs. 28 and 32 with a fractal dimension of 2.67. For comparison, two other lines are depicted corresponding to different fractal dimensions.
