Fall 2026
Time & Location: Typically talks will be in TBA at _:00 pm on a Friday.
Organizers: Guido Mazzuca
September 04, 2026
Applied and Computational
Title: Passive Scalar Mixing -- The Batchelor Scale
Speaker: Robin Chemnitz - Tulane University
Abstract: When pouring some milk into hot tea, the milk forms increasingly filamented patterns before eventually becoming a uniform blend of milky tea. Mathematically, this process is modelled by the advection-diffusion equation. It is conjectured that the filementations of a passive scalar (the milk) get smaller and smaller until they reach a specific lenghscale, the Batchelor scale, at which point the cascade halts. In this talk, passive scalar advection and the Batchelor scale are introduced and we provide a simple stochastic fluid model for which the Batchelor scale conjecture can be verified.
Time: 3:00 PM
Location: TBA
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