The structural stability of the pattern of immiscible fluid transfer in a vortex flow

This is an experimental study of the characteristics of the transport of immiscible admixtures in a composite vortex with a free surface. We examined the evolution of a compact marker spot (sunflower oil and diesel oil) into the spiral arms on a composite vortex surface and the formation of an oil body in the fluid. Common elements in the distribution geometry were identified. The character of the transport of matter was shown to be independent of admixture properties in a wide range of variation in its density and viscosity. The experimentally obtained quantitative regularities of the admixture transport can be used for developing adequate physical and mathematical models of transport processes in vortex flows.