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Title:
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Diffusion of passive scalars under stochastic convection
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Author:
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Careta Pons, Agustí; Sagués i Mestre, Francesc; Sancho, José M.
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Other authors:
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Universitat de Barcelona |
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Abstract:
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The diffusion of passive scalars convected by turbulent flows is addressed here. A practical procedure to obtain stochastic velocity fields with well¿defined energy spectrum functions is also presented. Analytical results are derived, based on the use of stochastic differential equations, where the basic hypothesis involved refers to a rapidly decaying turbulence. These predictions are favorable compared with direct computer simulations of stochastic differential equations containing multiplicative space¿time correlated noise. |
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Subject(s):
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-Mecànica de fluids
-Turbulència
-Hidrodinàmica
-Estadística
-Mètode de Montecarlo
-Fluid mechanics
-Turbulence
-Hydrodynamics
-Statistics
-Monte Carlo method |
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Rights:
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(c) American Institute of Physics, 1994
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Document type:
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Article
Article - Published version |
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Published by:
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American Institute of Physics
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