Comportement dynamique d'un flux granulaire rapide convergent

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Original languageFrench
Pages (from-to)864-868
Journal / PublicationComptes Rendus Mathematique
Issue number8
Publication statusPublished - 1 Aug 2016


We consider a dilute flow of granular particles passing through a nozzle under gravity. This setting is an analogue to high-speed nozzle flows, which is a classical problem in the study of compressible gases. Contrary to the widely held belief that the behavior of very dilute granular systems is qualitatively similar to that of gases, we show that dilute granular systems can exhibit a type of intermittency that has no analogue in gas dynamics.