A fast algorithm for mass transfer on an unstructured grid formed by DEM particles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F11%3A43892162" target="_blank" >RIV/60461373:22340/11:43892162 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.powtec.2011.08.040" target="_blank" >http://dx.doi.org/10.1016/j.powtec.2011.08.040</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.powtec.2011.08.040" target="_blank" >10.1016/j.powtec.2011.08.040</a>

Result language

angličtina

Original language name

A fast algorithm for mass transfer on an unstructured grid formed by DEM particles

Original language description

The Discrete Element Method (DEM) was used to generate a particle packing and transient mass transfer in the particle layer was simulated using a novel algorithm for determining the mass fluxes between DEM particles. This method is intended for simulating diffusion phenomena occurring during the dissolution of swelling polymers as the DEM particles can change size and distort the grid, whilst maintaining sharp boundaries between mesh elements. In this work, the robustness and accuracy of the algorithm was tested by solving a diffusion problem over the DEM mesh and comparing it to an accurate solution obtained by a finite difference (FD) approximation, whose discretisation was 10 times finer than that of the unstructured grid. Parametric studies were conducted where the random packing and the size distribution of the DEM particles were altered and the differences in concentration profiles were compared with the FD reference solution through the use of the mean squared error. Both steady

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

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Continuities

R - Projekt Ramcoveho programu EK

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Powder Technology

ISSN

0032-5910

e-ISSN

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Volume of the periodical

214

Issue of the periodical within the volume

3

Country of publishing house

CH - SWITZERLAND

Number of pages

8

Pages from-to

415-422

UT code for WoS article

000297440500018

EID of the result in the Scopus database

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