Diffusion and Velocity Auto-Correlation in Shearing Granular Media TeX Export

@article{citeulike:5942074, abstract = {We perform numerical simulations to examine particle diffusion at steady shear in a model granular material in two dimensions at the jamming density and zero temperature. We confirm findings by others that the diffusion constant depends on shear rate as \$D\sim\dot\gamma^{q\_D}\$ with \$q\_D\<1\$, and set out to determine a relation between \$q\_D\$ and other exponents that characterize the jamming transition. We then examine the the velocity auto-correlation function, note that it is governed by two processes with different time scales, and identify a new fundamental exponent, \$\lambda\$, that characterizes an algebraic decay of correlations with time.}, archivePrefix = {arXiv}, author = {Olsson, Peter}, citeulike-article-id = {5942074}, citeulike-linkout-0 = {http://arxiv.org/abs/0910.2623}, citeulike-linkout-1 = {http://arxiv.org/pdf/0910.2623}, day = {14}, eprint = {0910.2623}, keywords = {diffusion, granular, shear, simulation}, month = {Oct}, posted-at = {2009-10-15 01:37:40}, priority = {2}, title = {Diffusion and Velocity Auto-Correlation in Shearing Granular Media}, url = {http://arxiv.org/abs/0910.2623}, year = {2009} }

TY - JOUR ID - citeulike:5942074 L3 - citeulike-article-id:5942074 N2 - We perform numerical simulations to examine particle diffusion at steady shear in a model granular material in two dimensions at the jamming density and zero temperature. We confirm findings by others that the diffusion constant depends on shear rate as $D\sim\dot\gamma^{q_D}$ with $q_D<1$, and set out to determine a relation between $q_D$ and other exponents that characterize the jamming transition. We then examine the the velocity auto-correlation function, note that it is governed by two processes with different time scales, and identify a new fundamental exponent, $\lambda$, that characterizes an algebraic decay of correlations with time. TI - Diffusion and Velocity Auto-Correlation in Shearing Granular Media KW - diffusion KW - granular KW - shear KW - simulation AU - Olsson, Peter PY - 2009/Oct/14/ UR - http://arxiv.org/abs/0910.2623 ER -