Scalar Decay in Chaotic Mixing
Scalar Decay in Chaotic Mixing
复制标题
混沌混合中的标量衰减
DOI：
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发表时间：
2005
期刊：
影响因子：
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通讯作者：
Jean
中科院分区：
文献类型：
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作者：
Jean
我回顾了局域混合理论，它侧重于标量的无穷小斑点被随机速度场平流和拉伸。这一理论的一个优点是它提供了优雅的分析结果。一个不利之处是，它非常理想化。然而，它提供了对混沌混合的机制和随机涨落对被动标量浓度场衰减率的影响的洞察。
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.