Vortex Flows with Particles and Droplets (A Review)

Single-phase vortices are a classic example of objects characterized by symmetry in the distribution of all main parameters. The presence of inertial particles (or droplets) in such objects, even with their initial uniform distribution in space, leads to symmetry breaking due to the inverse effect o...

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Bibliographic Details
Published in:Symmetry (Basel) 2022-10, Vol.14 (10), p.2016
Main Authors: Varaksin, Aleksey Yu, Ryzhkov, Sergei V.
Format: Article
Language:English
Subjects:
Broken symmetry
Droplets
Gas flow
Inertia
Parameters
particle inverse effect
particle motion
Reynolds number
Stability analysis
Structural stability
two-phase vortices
Velocity
Viscosity
Vortices
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Summary:Single-phase vortices are a classic example of objects characterized by symmetry in the distribution of all main parameters. The presence of inertial particles (or droplets) in such objects, even with their initial uniform distribution in space, leads to symmetry breaking due to the inverse effect of the dispersed phase on the characteristics of carrier vortices. A review of calculation-theoretical and experimental works devoted to the study of the motion of particles (or droplets) in various concentrated vortex structures, as well as their inverse effect on vortex characteristics, is conducted. The main characteristics (inertia, concentration) as well as dimensionless parameters (Reynolds, Stokes, Froude, Tachikawa numbers) determining the interaction between the dispersed phase and vortices are described. The results of available studies are analyzed in order to establish the peculiarities of particle (or droplet) behavior and stability of different vortex structures, including natural ones. The works analyzed in the review cover a wide range of inertia of the dispersed phase (Stkf = 0.002 − 14.7) and vortex intensities (ReΓ = 200 − 5000).
ISSN:2073-8994
2073-8994
DOI:10.3390/sym14102016