Probabilistic models for particle and scalar transport in fluctuating flows: an evaluation of simple closure approximations

David C. Swailes and Kirsty F.F. Darbyshire

Physica A: Statistical Mechanics and its Applications, 1999, vol. 262, issue 3, 307-327

Abstract: A generalized Fokker–Planck equation is used to describe the transport of discrete particles and fluid-points in fluctuating flows. Simple closure approximations for this equation are considered which allow free-field analytic solutions to be constructed. Results based on these solutions are compared with those obtained from simulation of the underlying, non-Markovian particle and fluid-point trajectories. The work validates the form of the generalized Fokker–Planck equation, and demonstrates the effectiveness of using models based on this equation to study such transport.

Keywords: Turbulent dispersion; Fokker–Planck equation (search for similar items in EconPapers)
Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:262:y:1999:i:3:p:307-327

DOI: 10.1016/S0378-4371(98)00442-7

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