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Statistically stationary stirring of a scalar sustained by steady sources and sinks

Doering, CR
Thursday 02 October 2008, 10:00-10:30

Seminar Room 1, Newton Institute


Stirring generally enhances mixing, aiding molecular diffusivity by amplifying scalar gradients. Scalars sustained by steady sources and sinks, however, may best be mixed by flows with optimal transport properties. In this talk we describe differences between transient and steady state mixing and discuss implications for the concept of effective (eddy) diffusion.

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