Extension of the hard-sphere particle-wall collision model to account for particle deposition

Pawel Kosinski and Alex C. Hoffmann
Phys. Rev. E 79, 061302 – Published 10 June 2009

Abstract

Numerical simulations of flows of fluids with granular materials using the Eulerian-Lagrangian approach involve the problem of modeling of collisions: both between the particles and particles with walls. One of the most popular techniques is the hard-sphere model. This model, however, has a major drawback in that it does not take into account cohesive or adhesive forces. In this paper we develop an extension to a well-known hard-sphere model for modeling particle-wall interactions, making it possible to account for adhesion. The model is able to account for virtually any physical interaction, such as van der Waals forces or liquid bridging. In this paper we focus on the derivation of the new model and we show some computational results.

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  • Received 14 March 2009

DOI:https://doi.org/10.1103/PhysRevE.79.061302

©2009 American Physical Society

Authors & Affiliations

Pawel Kosinski and Alex C. Hoffmann

  • Department of Physics and Technology Bergen, The University of Bergen, N-5007 Bergen, Norway

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Issue

Vol. 79, Iss. 6 — June 2009

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