The gravitational settling of aerosol particles in homogeneous turbulence and random flow fields
1987 ◽
Vol 174
◽
pp. 441-465
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Keyword(s):
The Mean
◽
The average settling velocity in homogeneous turbulence of a small rigid spherical particle, subject to a Stokes drag force, is shown to depend on the particle inertia and the free-fall terminal velocity in still fluid. With no inertia the particle settles on average at the same rate as in still fluid, assuming there is no mean flow. Particle inertia produces a bias in each trajectory towards regions of high strain rate or low vorticity, which affects the mean settling velocity. Results from a Gaussian random velocity field show that this produces an increased settling velocity.
1993 ◽
Vol 256
◽
pp. 27-68
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Keyword(s):
2020 ◽
Vol 12
(2)
◽
pp. 168781402090782
2001 ◽
Vol 106
(C2)
◽
pp. 2713-2722
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Keyword(s):