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GPF

Seminar

Granular flows on unconfined slopes

Takagi, D; McElwaine, JN; Huppert, HE (Cambridge)
Tuesday 06 January 2009, 12:30-12:45

Seminar Room 1, Newton Institute

Abstract

A variety of features are observed when sand is supplied steadily on a rough unconfined slope. Over a range of intermediate slope angles, a densely packed layer of finite width and critically shallow depth develops and flows downstream. Isolated avalanches form periodically for input fluxes below a sufficiently small value. The experimental results will be presented and explained by theoretical ideas.

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