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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Estimation of NH3 emissions from a naturally ventilated livestock farm using local-scale atmospheric dispersion modelling
Arjan Hensen,Benjamin Loubet,J. Mosquera,W.C.M. van den Bulk,Jan Willem Erisman,Ulrich Dämmgen,Celia Milford,Franz-Josef Löpmeier,Pierre Cellier,P. Mikuska,Mark A. Sutton +10 more
TL;DR: In this paper, the authors used a Gaussian-3D plume model and with Huang 3-D model to estimate the emissions from the main sources of ammonia (NH3), i.e., livestock farms.
Journal ArticleDOI
Parameter estimation of random fields with long-range dependence
Vo Anh,K. E. Lunney +1 more
TL;DR: In this article, the authors consider random fields with spectral density having a pole of fractional order at the origin and obtain an approximation to the likelihood function for the estimation of model parameters.
Journal ArticleDOI
Buoyant plume rise in a Lagrangian framework
TL;DR: In this article, a Lagrangian model for buoyant plume rise in a turbulent environment is presented. But it is not shown that it is possible to return the classical Eulerian formulations in a calm environment but it is also able to accomodate more recent Eulerians in a more turbulent environment.
Journal ArticleDOI
Validation of a Lagrangian particle dispersion model with wind tunnel and field experiments in urban environment
TL;DR: A modelling approach based on a 3D Lagrangian Particle Dispersion model driven by 3D flow and turbulence input provided by either a diagnostic mass-consistent model or a model solving the Reynolds-Averaged Navier-Stokes equations is presented.
Statistical analysis of turbulent pipe flow : a numerical approach
TL;DR: The final author version and the galley proof are versions of the publication after peer review that features the final layout of the paper including the volume, issue and page numbers.
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.