Formation of a system of inclined loops in the flow of a drop impactстатьяИсследовательская статья
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Дата последнего поиска статьи во внешних источниках: 3 апреля 2022 г.
Аннотация:The process of formation and restructuring of a regular system of inclined loops containing the substance of a freely falling colored drop in the bulk of the target fluid has been traced by the methods of high-resolution photo and video recording for the first time. Loops up to 1.5 cm long, penetrating into the target fluid in the mode of splash formation, are pulled out from small vortices that deform the wall of the growing cavity at the nodes of the primary network that are in the regions of accumulation of the drop matter. Loops existing up to 60 ms are deformed and carried by intense near-surface flows in the initial phase of the splash formation. The change in the general structure of the flow is accompanied by the formation of new types of fibrous structures of the drop substance distribution. 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.