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Numerical Analysis of the Impact of Particle Friction on Bed Voidage in Fixed‐Beds
Author(s) -
Jurtz Nico,
Waldherr Philipp,
Kraume Matthias
Publication year - 2019
Publication title -
chemie ingenieur technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 36
eISSN - 1522-2640
pISSN - 0009-286X
DOI - 10.1002/cite.201800190
Subject(s) - equilateral triangle , particle (ecology) , mechanics , discrete element method , materials science , spheres , aspect ratio (aeronautics) , tube (container) , particle size , diameter ratio , geometry , composite material , mathematics , physics , chemistry , geology , oceanography , astronomy
The impact of the static friction coefficient, the initial particle orientation, and the particle height‐to‐diameter ratio on the bed voidage of random packings with a low tube‐to‐particle diameter ratio is investigated for spherical and cylindrical particles using the discrete element method. Based on the numerical results a correlation is proposed to predict the bed voidage as a function of the static friction coefficient and the tube‐to‐particle diameter ratio for spheres, equilateral and non‐equilateral cylinders. This correlation is extended for the use of hollow cylinders.