Artículo
Impulsive generation of jets by flow focusing
Autor/es | Gordillo Arias de Saavedra, José Manuel
Onuki, Hajime Tagawa, Yoshiyuki |
Departamento | Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos |
Fecha de publicación | 2020 |
Fecha de depósito | 2023-06-22 |
Publicado en |
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Resumen | Here we characterize the origin and subsequent disintegration into droplets of the type of high-speed jets formed after the sudden implosion of a locally spherical cavity. The full spatio-temporal evolution of these types ... Here we characterize the origin and subsequent disintegration into droplets of the type of high-speed jets formed after the sudden implosion of a locally spherical cavity. The full spatio-temporal evolution of these types of impulsively generated jets is described here making use of just the initial values of the interfacial normal velocity at the axis of symmetry and of its corresponding second derivative along the azimuthal direction, obtained straightforwardly from the solution of the Laplace equation subjected to standard boundary conditions. The predicted time evolutions of the jet tip radius and velocity, and of the radii of the ejected droplets, are shown to agree well with experimental observations. |
Cita | Gordillo Arias de Saavedra, J.M., Onuki, H. y Tagawa, Y. (2020). Impulsive generation of jets by flow focusing. Journal of Fluid Mechanics, 894, A3. https://doi.org/10.1017/jfm.2020.270. |
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JFM_2020_Gordillo_Impulsive_OA.pdf | 417.7Kb | [PDF] | Ver/ | |