DEM modeling and simulation of a catalytic gas–solid fluidized bed reactor: a spouted bed as a case study

Computational Approaches for Studying the Granular Dynamics of Continuous Blending Processes, 1 – DEM Based Methods

“…If, in the simulation, the tangential force obtained from Equation (15) exceeds the Coulomb limit for any pairinteraction, the slip is accounted for by resetting the tangential displacement to d t ¼ F t =k t . This contact model is incorporated in a commercial DEM modeling software package, EDEM (DEM Solutions Inc.) and has been shown to provide good agreement with experimental studies involving bladed mixers, [69] size-segregation studies, [70] bulk solids mixing and conveying, [71] and fluidized bed reactors [72,73] and has been shown to be comparable with other models. [55,74] The parametric studies for the periodic slice simulations are focused on non-cohesive and cohesive particles.…”

Fluid hydrodynamic characteristics in supercritical water fluidized bed: A DEM simulation study

“…DEM was first proposed by Cundall and Strack (1979) and first combined with computational fluid dynamic (CFD) to study fluidized bed by Tsuji et al (1993). Recently, the DEM-CFD method has been employed by many researchers to investigate traditional fluidized bed (Xu and Yu, 1997;Tsuji et al, 1998;Kaneko et al, 1999;Rhodes et al, 2001a,b;Kafui et al, 2002;Limtrakul et al, 2004;Zhu et al, 2008;Darabi et al, 2011;He et al, 2012;Yang et al, 2013).…”

A study on tangential force laws applicable to the discrete element method (DEM) for materials with viscoelastic or plastic behavior

“…To give some examples, Silo discharge was studied by Yang and Hsiau (2001), Goda and Ebert (2005), Langston et al (1994) and Kruggel-Emden et al (2006), particle mixing on grates and in drums was examined by Peters et al (2005), Kruggel-Emden et al (2007a) and Finnie et al (2005), fluidized beds were studied by Tsuji et al (1993), Zhong et al (2006), Tatemoto et al (2005) and Limtrakul et al (2004) and simulations dealing with plug flow were performed by Tsuji et al (1992).…”