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

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If you have a question about this talk, please contact Mustapha Amrani.

The Nature of High Reynolds Number Turbulence

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.

This talk is part of the Isaac Newton Institute Seminar Series series.

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