Journal ArticleDOI
Criteria for the selection of stochastic models of particle trajectories in turbulent flows
TLDR
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 and also how a model can be designed to satisfy these criteria exactly and to be consistent with inertial-subrange theory.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.read more
Citations
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Journal ArticleDOI
Detecting regime transitions of the nocturnal and Polar near-surface temperature inversion
TL;DR: In this paper, a combination of methods from dynamical systems and statistical modeling is applied to study these regime transitions and to develop an early warning signal that can be applied to nonstationary field data.
Journal ArticleDOI
Dispersion de particules solides en mouvement de saltation dans un écoulement turbulent
TL;DR: Aguirre et al. as discussed by the authors studied the dispersion of solides en mouvement de saltation dans une turbulence homogene and dans a couche limite turbulente.
Journal Article
Evapotranspiration in water limited environments : up - scaling from the crown canopy to the eddy flux footprint + poster.
Journal ArticleDOI
Concentration fluctuations and relative dispersion PDF
Enrico Ferrero,Luca Mortarini +1 more
TL;DR: In this paper, the relative dispersion of particle pairs released in a homogeneous isotropic stationary turbulent field is considered in a one-dimensional two-particle Lagrangian stochastic model.
Journal ArticleDOI
A lagrangian stochastic model for particle trajectories in non-gaussian turbulent flows
TL;DR: In this article, a Lagrangian stochastic model is developed for the simulation of particle trajectories within inhomogeneous turbulent flows, which is exactly consistent with Thomson's well-mixed condition.
References
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Journal ArticleDOI
An Introduction to Probability Theory and Its Applications.
Journal ArticleDOI
Turbulence Structure in the Convective Boundary Layer
TL;DR: In this paper, a boundary layer experiment conducted over a flat site in northwestern Minnesota is discussed, where wind and temperature fluctuations near the ground were measured with AFCRL's fast-response instrumentation on a 32 m tower with MRU probes attached at five different heights to the tethering cable of a 1300 m2 kite balloon.
Book
Theory and Applications of Stochastic Differential Equations
Zeev Schuss,Robert O'Malley +1 more
TL;DR: Presents theory, sources, and applications of stochastic differential equations of Ito's type; those containing white noise; and the role of partial differential equations in this context.