Formation of a System of Inclined Loops in the Flows of a Drop Impact

For the first time, the process of formation and restructuring of a regular system of inclined loops containing the substance of a freely falling colored drop in the depth of the target liquid was traced by the methods of high-resolution photo and video recording. Loops with a length of up to 1.5 cm penetrating into the liquid in the splash formation mode are pulled out of small vortices that deform the wall of the growing cavity at the nodes of the primary mesh, i.e., the regions of accumulation of the droplet matter. Loops existing up to 60 ms are deformed and carried by intense near-surface flow at the initial phase of development of the splash. The change in the general structure of the flow is accompanied by the formation of new types of fibrous structures in the distribution of the droplet substance. The rapidly developing systems of colored fibers existing at all stages of the evolution of the drop impact processes, up to the formation of a cascade of rings, violate the axial symmetry of the flows.