Mesoscopic model for colloidal particles, powders and granular solids

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dc.creatorGroot, Robert D.
dc.creatorStoyanov, Simeon D.
dc.date2008-10-16
dc.date2008-11-14
dc.date.accessioned2026-07-07T10:19:05Z
dc.date.available2026-07-07T10:19:05Z
dc.descriptionA simulation model is presented, comprising elastic spheres with a short range attraction. Besides conservative forces, radial- and shear friction, and radial noise are added. The model can be used to simulate colloids, granular solids and powders, and the parameters may be related to experimental systems via the range of attraction and the adhesion energy. The model shares the simplicity and speed of Dissipative Particle Dynamics (DPD), yet the predictions are rather non-trivial. We demonstrate that the model predicts the correct scaling relations for fracture of granular solids, and we present a schematic phase diagram. This shows liquid-vapor coexistence for sufficiently large interaction range, with a surface tension that follows Ising criticality. For smaller interaction range only solid-vapor coexistence is found, but for very small attractive interaction range stable liquid-vapor coexistence reappears due to pathological stability of the solid phase. At very low temperature the model forms a glassy state.
dc.description12 pages, 6 figures, accepted by Physical Review E, typos corrected
dc.identifierhttps://arxiv.org/abs/0810.2889
dc.identifierhttp://arxiv.org/abs/0810.2889
dc.identifierPhysical Review E 78, 051403 (2008)
dc.identifierdoi:10.1103/PhysRevE.78.051403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/174382
dc.subjectSoft Condensed Matter
dc.titleMesoscopic model for colloidal particles, powders and granular solids
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