Discrete element models of particle flows

Abstract

Particle flows occur in a very wide range of industrial applications. In a Discrete element model (DEM) the motions of the individual particles in the system are tracked. The model simulates all the interactions between the particles and their environment. The goal is to predict the macro‐properties of the flow and the modelling of the separate particles is only as accurate as required for this global aim. It is necessary to simulate particles of many different sizes and densities interacting with complex shaped surfaces. Dalelių judėjimo diskrečiųjų elementų modelis Santrauka Daugelyje industriniu taikymu nagrinejamas daleliu judejimas. Ši metodika remiasi visu daleliu saveikos modeliavimu. Darbe keliamas tikslas ištirti ir prognozuoti tekejimo makrosavybes, remiantis šiuo tikslu parenkamas modelio tikslumas. Kiekvieno eksperimento metu modeliuojamas labai didelio skaičiaus ivairiu dydžiu daleliu judejimas, ištirta tokiu daleliu saveika su sudetigos formos paviršiais. Aptartos lygiagrečiuju algoritmu panaudojimo galimybes. First Published Online: 14 Oct 2010

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