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Diffusion of passive scalars under stochastic convection

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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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Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Diffusion of passive scalars under stochastic convection