Radial granular segregation under chaotic flow in two-dimensional tumblers Export

@article{cisar_pre2006, abstract = {An initially well mixed granular material composed of two distinct subclasses of particles, small and large or light and heavy, segregates radially into stable lobed patterns when rotated in various quasi-two-dimensional, regular polygonal tumblers. The patterns are highly sensitive to the time-periodic flow, which in turn depends critically on the fill fraction and container shape. Simulations of a simple model reproduce the segregation patterns observed in experiment. Kolmogorov-Arnol'd-Moser (KAM) regions in Poincar\é plots of the velocity field used to model the flow attract smaller (denser) particles and their spatial symmetries mirror those of the segregation patterns, suggesting that competition between the driving forces for radial segregation (percolation and buoyancy) and those for chaotic mixing plays a key role.}, author = {Cisar, Stephen E. and Umbanhowar, Paul B. and Ottino, Julio M.}, citeulike-article-id = {4266894}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLEEE8000074000005051305000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRE/v74/e051305}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevE.74.051305}, doi = {10.1103/PhysRevE.74.051305}, journal = {Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)}, keywords = {chaos, granular\_flow, radial\_segregation, rotating\_drum, size\_segregation, solid\_mixer}, number = {5}, pages = {051305+}, posted-at = {2009-04-03 01:35:53}, priority = {2}, publisher = {APS}, title = {Radial granular segregation under chaotic flow in two-dimensional tumblers}, url = {http://dx.doi.org/10.1103/PhysRevE.74.051305}, volume = {74}, year = {2006} }

TY - JOUR ID - cisar_pre2006 L3 - citeulike-article-id:4266894 N2 - An initially well mixed granular material composed of two distinct subclasses of particles, small and large or light and heavy, segregates radially into stable lobed patterns when rotated in various quasi-two-dimensional, regular polygonal tumblers. The patterns are highly sensitive to the time-periodic flow, which in turn depends critically on the fill fraction and container shape. Simulations of a simple model reproduce the segregation patterns observed in experiment. Kolmogorov-Arnol'd-Moser (KAM) regions in Poincaré plots of the velocity field used to model the flow attract smaller (denser) particles and their spatial symmetries mirror those of the segregation patterns, suggesting that competition between the driving forces for radial segregation (percolation and buoyancy) and those for chaotic mixing plays a key role. IS - 5 JF - Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) TI - Radial granular segregation under chaotic flow in two-dimensional tumblers PB - APS VL - 74 SP - 051305 KW - chaos KW - granular_flow KW - radial_segregation KW - rotating_drum KW - size_segregation KW - solid_mixer AU - Cisar, Stephen AU - Umbanhowar, Paul AU - Ottino, Julio PY - 2006/// UR - http://dx.doi.org/10.1103/PhysRevE.74.051305 ER -