Print Email Facebook Twitter Transport coefficients for dense hard-disk systems Title Transport coefficients for dense hard-disk systems Author García-Rojo, R. Luding, S. Brey, J.J. Faculty Applied Sciences Department DelftChemTech Date 2006-12-13 Abstract A study of the transport coefficients of a system of elastic hard disks based on the use of Helfand-Einstein expressions is reported. The self-diffusion, the viscosity, and the heat conductivity are examined with averaging techniques especially appropriate for event-driven molecular dynamics algorithms with periodic boundary conditions. The density and size dependence of the results are analyzed, and comparison with the predictions from Enskog’s theory is carried out. In particular, the behavior of the transport coefficients in the vicinity of the fluid-solid transition is investigated and a striking power law divergence of the viscosity with density is obtained in this region, while all other examined transport coefficients show a drop in that density range in relation to the Enskog’s prediction. Finally, the deviations are related to shear band instabilities and the concept of dilatancy. To reference this document use: http://resolver.tudelft.nl/uuid:79cdd926-af37-47d0-bffe-91e3ff5ff58b DOI https://doi.org/10.1103/PhysRevE.74.061305 Publisher American Physical Society ISSN 1539-3755 Source Physical Review E, 74 (6), 2006 Part of collection Institutional Repository Document type journal article Rights (c) 2006 The Author(s); American Physical Society Files PDF Luding_2006.pdf 183.07 KB Close viewer /islandora/object/uuid:79cdd926-af37-47d0-bffe-91e3ff5ff58b/datastream/OBJ/view