An essential element for the sustainable use of renewable resources is an efficient comminution process. For processes, detailed knowledge fracturing processes necessary. Therefore, single-particle under impact stress was investigated, and influence moisture content particle size in beech wood described. The extent applicability existing models to wood, modeling breakage probability function br...

Using DEM (Discrete Element Method), a model is presented to simulate the breakage of two-dimensional polygonshaped particles. In this model, shapes of the particles generated after breakage are predefined and each uniform (uncracked) particle is replaced with smaller inter-connected sub-particles. If the bond between these sub-particles breaks, breakage will happen. With the help of this model...

• Euler-Lagrange simulations of agitated solids suspensions including breakage Solids distribution and flow structures evolve with particle size reduction process Revolving impeller is the major source Two-way coupled solids-liquid in a lab-scale mixing tank operating at Reynolds number 4000 volume fraction 10% have been performed. The keep track individual particles, their collisions. Upon col...

this paper studies thoroughly and deeply the results of about one hundred triaxial compression tests on thirty types of rockfill materials. the materials are categorized in accordance with their particles shape (angular / rounded) and gradation characteristics. the main tool of the study is the hyperbolic model developed by duncan and chang. the focus of the study is on the variations of deform...

We study the influence of particle shape on evolution breakage process taking place inside rotating cylinders. Extensive dynamics simulations into account granular flow, breakage, and polygonal shapes were carried out. find that rate is faster in samples composed initially rounder particles. The analysis active flowing layer thickness suggests for particles a relatively lower dilatancy higher c...

Introduction This work presents an analysis of gas-solids flow in a pneumatic conveying line wherein by collisions with the wall, the particles undergo breakage. A measure of particle attrition, the often-undesirable damage to particles, is necessary for design of many fluid-particle operations. For example, proper design of cyclones requires knowledge of the amount and size of fines produced f...