Moderately strong vorticity in a bathtub-type flow
Contribuinte(s) |
M.Y. Hussaini |
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Data(s) |
01/01/2001
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Resumo |
Theoretical and numerical analysis is performed for an inviscid axisymmetric vortical bathtub-type flow. The level of vorticity is kept high so that the image of the flow on the radial-axial plane (r-z plane) is not potential. The most significant findings are: (1) the region of validity of the strong vortex approximation is separated from the drain by a buffer region, (2) the power-law asymptote of the stream function, specified by Delta Psi similar to r(4/3) Deltaz, appears near the axis when vorticity in the flow is sufficiently strong and (3) the local Rossby number in the region of the 4/3 power-law the initial vorticity level in the flow and the global Rossby number. |
Identificador | |
Idioma(s) |
eng |
Publicador |
Springer-Verlag |
Palavras-Chave | #Mechanics #Physics, Fluids & Plasmas #C1 #291801 Fluidization and Fluid Mechanics #780102 Physical sciences |
Tipo |
Journal Article |