Article
The dynamics and mixing of small spherical particles in a plane, free shear layer
Author/s | Gañán-Calvo, Alfonso M.
C. Lasheras, Juan |
Department | Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos |
Publication Date | 1991 |
Deposit Date | 2020-11-09 |
Published in |
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Abstract | The equation of motion of small rigid spheres settling under gravity in a two-dimensional
inviscid flow given by the Stuart solution of the Euler equations is analyzed as a fourdimensional dynamical system. It is shown ... The equation of motion of small rigid spheres settling under gravity in a two-dimensional inviscid flow given by the Stuart solution of the Euler equations is analyzed as a fourdimensional dynamical system. It is shown that depending on the values of the Stokes, Grashof, and a scaled Reynolds number, particles may either sediment or remain permanently suspended in the flow. When suspension occurs, the particle trajectories are shown to be attracted by a single period, quasiperiodic, or chaotic orbits. A consequence of the existence of a strange attractor (chaotic orbit) is that heavy particles can reach a stage ofjhdization by which they remain indefinitely suspended in a layer of finite height located above the center of the Stuart vortices. |
Project ID. | FPU-28687948 |
Citation | Gañán-Calvo, Alfonso M. y C. Lasheras, J. (1991). The dynamics and mixing of small spherical particles in a plane, free shear layer. Physics of fluids. A, Fluid dynamics : a publication of the American Institute of Physics, 3 (5), 1207-1217. |
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