Numerical experiments in scalar diffusion under stochastic convection

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作者：
Universitat de Barcelona, Barcelona, Spain [1 ]
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来源：
Applied Scientific Research (The Hague) | 1997年 / 59卷 / 2-3期
关键词：
Computational fluid dynamics - Computer simulation - Diffusion in liquids - Mixing - Random processes;
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摘要：
We study scalar diffusion, both from Eulerian and Lagrangian perspectives, advected by two dimensional flows. Emphasis is devoted to the problem of scalar diffusion under a synthetic turbulent flow. We present numerical and analytical results for the turbulent diffusion coefficient either from the influence of the turbulent synthetic field and a periodic array of eddies. Preliminary results concerning Lagrangian dispersion are also reported.
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页码：127 / 139
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