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Criteria for the selection of stochastic models of particle trajectories in turbulent flows

Thomson, D. J.·1987·Journal of Fluid Mechanics

Abstract

Many different random-walk models of dispersion in inhomogeneous or unsteady turbulence have been proposed and several criteria have emerged to distinguish good models from bad. In this paper the relationships between the various criteria are examined for a very general class of models and it is shown that most of the criteria are equivalent. It is also shown how a model can be designed to satisfy these criteria exactly and to be consistent with inertial-subrange theory. Some examples of models that obey the criteria are described. As an illustration some calculations of dispersion in free-convective conditions are presented.

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Metadata

Authors
Thomson, D. J.
Venue
Journal of Fluid Mechanics
Published
1987-07
Volume
180
Pages
529-556
ISSN
  • 0022-1120 (ISSN-L)
  • 1469-7645
OpenAlex
W2130487464
Cited by
1,216
References
0
FWCI
9.00
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Criteria for the selection of stochastic models of particle trajectories in turbulent flows. https://app.cochat.ai/papers/10.1017/s0022112087001940
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Thomson, D. J. (1987). Criteria for the selection of stochastic models of particle trajectories in turbulent flows. Journal of Fluid Mechanics. https://doi.org/10.1017/s0022112087001940

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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.