The use of eulerian initial conditions in a Lagrangian model of turbulent diffusion

The use of eulerian initial conditions in a Lagrangian model of turbulent diffusion

Plumes from a finite-size, finite-duration source are analyzed by using the random-force or Langevin equation model of turbulent diffusion. Initial conditions at the source are expressed in terms of the Eulerian space-time velocity autocorrelation function. Simple analytic solutions are obtained for...

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Veröffentlicht in:Atmospheric environment 1983, Vol.17 (12), p.2477-2481
Hauptverfasser: Lee, J.T., Stone, G.L.
Format: Artikel
Sprache:eng
Schlagworte:
500100 - Environment, Atmospheric- Basic Studies- (-1989)
500200 - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989)
Applied sciences
Atmospheric pollution
CLUSTER EMISSION MODEL
DIFFUSION
ENVIRONMENTAL SCIENCES
Exact sciences and technology
FUNCTIONS
LAGRANGIAN FUNCTION
MATHEMATICAL MODELS
MULTIPERIPHERAL MODEL
PARTICLE MODELS
PARTICLES
PARTICULATES
PERIPHERAL MODELS
PLUMES
Pollutants physicochemistry study: properties, effects, reactions, transport and distribution
Pollution
SPACE-TIME MODEL
TURBULENCE
VELOCITY
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Beschreibung
Zusammenfassung:Plumes from a finite-size, finite-duration source are analyzed by using the random-force or Langevin equation model of turbulent diffusion. Initial conditions at the source are expressed in terms of the Eulerian space-time velocity autocorrelation function. Simple analytic solutions are obtained for the relative diffusion, meandering and total diffusion.
ISSN:0004-6981
1352-2310
DOI:10.1016/0004-6981(83)90072-0