Universal Journal of Engineering Science Vol. 1(4), pp. 139 - 145
DOI: 10.13189/ujes.2013.010404
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Enhanced Thermal Process Engineering by the Extended Discrete Element Method (XDEM)


Bernhard Peters *, Xavier Besseron , Alvaro Estupinan , Florian Hoffmann , Mark Michael , Amir Mahmoudi
UniversitĀ“e du Luxembourg, FacultĀ“e des Sciences,de la Technologie et de la Communication, 6, rue Coudenhove-Kalergi, L-1359 Luxembourg

ABSTRACT

A vast number of engineering applications include a continuous and discrete phase simultaneously, and therefore, cannot be solved accurately by continuous or discrete approaches only. Problems that involve both a continuous and a discrete phase are important in applications as diverse as pharmaceutical industry e.g. drug production, agriculture food and processing industry, mining, construction and agricultural machinery, metals manufacturing, energy production and systems biology. A novel technique referred to as Extended Discrete Element Method (XDEM) is developed, that offers a significant advancement for coupled discrete and continuous numerical simulation concepts. The Extended Discrete Element Method extends the dynamics of granular materials or particles as described through the classical discrete element method (DEM) to additional properties such as the thermodynamic state or stress/strain for each particle coupled to a continuum phase such as fluid flow or solid structures. Contrary to a continuum mechanics concept, XDEM aims at resolving the particulate phase through the various processes attached to particles. While DEM predicts the spacial-temporal position and orientation for each particle, XDEM additionally estimates properties such as the internal temperature and/or species distribution. These predictive capabilities are further extended by an interaction to fluid flow by heat, mass and momentum transfer and impact of particles on structures.

KEYWORDS
Extended Discrete Element Method, process engineering, multi-physics, modelling

Cite this paper
Bernhard Peters , Xavier Besseron , Alvaro Estupinan , Florian Hoffmann , Mark Michael , Amir Mahmoudi (2013). Enhanced Thermal Process Engineering by the Extended Discrete Element Method (XDEM). Universal Journal of Engineering Science, 1 , 139 - 145. doi: 10.13189/ujes.2013.010404.