Experimental studies of complex patterns

Simple experimental description for the development of random fractals. 

The development of fractal patterns during crystallization A simple experimental setup shown in Fig. 13.10 was employed to study the crystal growth in a two-dimensional configuration. 

A known volume of solution is poured and spread uniformly over the surface of micro-slide (7.5 cm x 2.5 cm) and placed in an air thermostat, the temperature of which could be controlled to 0.1°C. Evaporation starts and after a certain time of initiation crystallization takes place. To examine the morphology, photographs are taken with the help of a camera attached to a microscope. 

KCl concentration has been observed. Typical fractal pattern of KCl crystallized from aqueous solution containing 0.2% agar-agar is shown in Fig. 13.13. 

Daccord and Lenormand [36] have shown experimentally that the dissolution patterns obtained by injecting water through pure master were fractal. These results are of interest in different areas where chemical dissolution of porous media by a flowing fluid occurs. In nature, the formation of caves and the oil industry are examples of this process. In two dimensions, these dissolution patterns are remarkably similar to patterns associated with DLA, which includes dielectric breakdown. The two-dimensional dissolution patterns are remarkably similar to patterns associated with DLA. 

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