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Giant Volcanic Intrusions

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If you have a question about this talk, please contact Akshath Sharma.

I would present a brief description of a volcanic eruption, the formation of a volcanic plume and its intrusion at the height of neutral density into the stratified atmosphere; the intrusion rate determined by balance of forces, by balance of terms in the governing equations and by a similarity form of solution, all of which agree, but are, unfortunately, incorrect ! I will go on to develop the correct, quite different, solution and account for the extra effects of drag and wind. I will end with a observational graph, which I like, but some others don’t, collapsing the data for spread as a function of down-stream distance, an aspect I am still working on.

This talk is part of the Fluid Mechanics (CUED) series.

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