Discrete Element Method in the Design of Transport Systems

Abstract

the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other physical way, and transmission or information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed. The use of general descriptive names, registered names, trademarks, service marks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. The publisher, the authors, and the editors are safe to assume that the advice and information in this book are believed to be true and accurate at the date of publication. Neither the publisher nor the authors or the editors give a warranty, express or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Numerical Simulation of Solids Conveying in Grooved Feed Sections of Single Screw Extruders

“…Taking into account the interactions in the contact surfaces and the material properties, this is achieved by setting up and solving the momentum balance. In the DEM, both the translational and rotational movements of the spheres are determined [41,42]:…”

“…The calculation of the spring and damping constants k and c, respectively, is contact-model-specific and is based on the material input parameters. For the Hertz-Mindlin contact model, it is well documented and can be found, for example, in [38,41,42].…”

Implementation, validation and application of a lubrication force model in CFD-DEM simulations

“…This deformation is used to calculate the contact forces acting on a particle due to elastic collisions. The Hertz-Mindlin model (Gelnar and Zegzulka 2019) was used to calculate the normal and the tangential components of elastic and damping forces and torques as shown in Eqs. (12,13,14,15,16).…”

Modeling and analysis of dust control hopper system

“…This contact model in a non-linear elastic model, which uses spring -dashpot response to normal contact between particles -particles and optionally between particles -equipment geometry. The model uses Coulomb friction for shear interactions and second spring -dashpot response to tangential or rolling friction interaction [9].…”

“…For this model assumption is used that the displacement is directly proportional to the applied force (3). To obtain the contact force in this method the overlap velocity is required as an input parameter [9].…”