Publicação: Fundamental study of plasma jet-liquid interaction by free surface topography
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Electrical discharges on liquid are likely future solutions for nanomaterial synthesis,
medicine among other applications. Of which these discharges, the Plasma Jet is one of these
configurations. It is placed in the category of cold plasma composed by the discharge into a
flow of an inert gas such as argon. By having a Gas Jet, its analysis in fluid dynamics would be
essential, however, the majority of studies have a chemical or electrical approach. So, in this
context, studies in fluid mechanics must be deepened, especially in the field of surface
deformation. This field, little studied, is very important because the surface has an influence on
several quantities of interest such as the distribution of the electric field, the size of the plasma
and the exchange interface between the plasma and the liquid. It is for this reason that the use
of a Free Surface Topography Method was chosen to analyze surface deformations. So, the
physical phenomenon for the application of this method is the refraction of a pattern viewed
by a camera through the air-liquid interface. The image of the pattern viewed by the camera is
distorted if the surface is not flat. An algorithm makes it possible to calculate, from this
deformed image, the topography of the surface, by comparing this image with a reference one
without deformation.
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Plasma-jet, Cold plasma, Surface deformation, Free surface topography method, Air-liquid interface, Synthetic schlieren, Argon plasma-jet
Citação
OLIVEIRA, João Vitor Dias Honorato de. Fundamental study of plasma jet-liquid interaction by free surface topography. 2021. 54 f. Trabalho de Conclusão de Curso (Graduação em Engenharia Mecânica) - Universidade Federal de Uberlândia, Uberlândia, 2022.
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