JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Online ISSN : 1881-1299
Print ISSN : 0021-9592
Physical Properties and Physical Chemistry
Investigation of Particle Dynamics in a Disc Rotating Device by Means of Experiments and Numerical Simulations Using DEM
Fangping YeYu Li Jiquan HuKaikai Chen
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2018 Volume 51 Issue 8 Pages 631-640

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Abstract

In this paper, the particle dynamics and free surface in a simplified disc device are studied using experiments and the Discrete Element Method (DEM). Two different kinds of free surface formula for the motion of particles in a disc device are derived and calculated. The disc rotational speed, particle filling rate, and particle materials are used as three experimental control parameters, and the experimental results are compared with the numerical calculation results. In order to obtain the dynamic distribution of particles, the influence of contact friction parameters are discussed by the DEM simulation. Besides the operating conditions, it can be observed that the particle material properties play an important role in particle dynamic distribution and DEM granular flow prediction. The results prove a feasible prediction of the particle free surface physical models, which also provides a method and theoretical basis to predict the particle flow characteristics in the vertical screw conveying.

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© 2018 The Society of Chemical Engineers, Japan
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