Abstract
Equations of motion, valid for a water droplet or a dust particle less than about 50Μm in radius moving through the air, are derived. Thus, the behaviour of a particle in some simple nonuniform fluid flows is discussed. In particular, it is found that a particle may follow an approximately closed trajectory in an axisymmetric flow about a horizontal axis. Thus, it is argued that turbulence should cause particles to fall at a much slower rate than their terminal velocity, even in the absence of a mean updraft.
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Manton, M.J. On the motion of a small particle in the atmosphere. Boundary-Layer Meteorol 6, 487–504 (1974). https://doi.org/10.1007/BF02137681
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DOI: https://doi.org/10.1007/BF02137681