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Vortex breakdown in a water-spout flow

 

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Author: Herrada Gutiérrez, Miguel Ángel
Shtern, Vladimir N.
López-Herrera Sánchez, José María
Department: Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos
Date: 2013
Published in: Physics of fluids, 25 (9), 093604-1-093604-9.
Document type: Article
Abstract: The numerical study of the steady axisymmetric air-water flow in a vertical sealed cylinder, driven by the rotating top disk, describes topological transformations as the rotation intensifies. The air meridional flow (AMF) and swirl induce meridional motions of opposite directions in water. For slow (fast) rotation, the effect of AMF (swirl) dominates. For very fast rotation, large-scale regions of clockwise meridional circulation in air and water are separated by a thin layer of anticlockwise circulation adjacent to the interface in water. This pattern develops for other fluids as well. Physical reasoning behind the flow evolution is provided.
Cite: Herrada Gutiérrez, M.Á., Shtern, V.N. y López-Herrera Sánchez, J.M. (2013). Vortex breakdown in a water-spout flow. Physics of fluids, 25 (9), 093604-1-093604-9.
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URI: http://hdl.handle.net/11441/57213

DOI: 10.1063/1.4821361

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