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The gravitational settling of aerosol particles in homogeneous turbulence and random flow fields
Abstract
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.
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Citations
Cited by
Turbulent Dispersed Multiphase Flow
Balachandar, S., & Eaton, J. K. (2010) · Annual Review of Fluid Mechanics · doi:10.1146/annurev.fluid.010908.165243 · Cited by 1,771
Intermittent Distribution of Inertial Particles in Turbulent Flows
Balkovsky, E., Falkovich, G., & Fouxon, A. (2001) · Physical Review Letters · doi:10.1103/physrevlett.86.2790 · Cited by 328
Olfactory Sensing and Navigation in Turbulent Environments
Reddy, G., Murthy, V. N., & Vergassola, M. (2022) · Annual Review of Condensed Matter Physics · doi:10.1146/annurev-conmatphys-031720-032754 · Cited by 100
Metadata
- Authors
- Maxey, M. R.
- Venue
- Journal of Fluid Mechanics
- Publisher
- Cambridge University Press (CUP)
- Published
- 1987-01
- Volume
- 174
- Pages
- 441-465
- ISSN
- 0022-1120 (ISSN-L)
- 1469-7645
- OpenAlex
- W2136822411
- Cited by
- 1,064
- References
- 0
- FWCI
- 5.11
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: The gravitational settling of aerosol particles in homogeneous turbulence and random flow fields. https://app.cochat.ai/papers/10.1017/s0022112087000193
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- Maxey, M. R. (1987). The gravitational settling of aerosol particles in homogeneous turbulence and random flow fields. Journal of Fluid Mechanics. https://doi.org/10.1017/s0022112087000193
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
