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arXiv nlin/0502011nlin.CDphysics.flu-dyn
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混沌混合中的标量衰减

Scalar Decay in Chaotic Mixing

Jean-Luc Thiffeault

摘要:

我回顾了当地的混合理论,重点是无穷小的斑点的标量被平流和拉伸的随机速度场。这个理论的一个优点是它提供了优雅的分析结果。缺点是它非常理想化。然而,它提供了深入了解混沌混合的机制和无源标量的浓度场的衰减率的随机波动的影响。

英文摘要:

I review the local theory of mixing, which focuses on infinitesimal blobs of scalar being advected and stretched by a random velocity field. An advantage of this theory is that it provides elegant analytical results. A disadvantage is that it is highly idealised. Nevertheless, it provides insight into the mechanism of chaotic mixing and the effect of random fluctuations on the rate of decay of the concentration field of a passive scalar.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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