Signatures of Glass Formation in a Fluidized Bed of Hard Spheres

by: Daniel I Goldman, Harry L Swinney

Physical Review Letters, Vol. 96, No. 14. (2006), pp. 145702-145702.

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Abstract

We demonstrate that a fluidized bed of hard spheres during defluidization displays properties associated with formation of a glass. The final state is rate dependent, and as this state is approached, the bed exhibits heterogeneity with increasing time and length scales. The formation of a glass results in the arrest of macroscopic particle motion and thus the loss of fluidization. Microscopic motion persists in this state, but the bed can be jammed by application of a small increase in flow rate. Thus a fluidized bed can serve as a test system for studies of glass formation and jamming.

@article{goldman06, abstract = {We demonstrate that a fluidized bed of hard spheres during defluidization displays properties associated with formation of a glass. The final state is rate dependent, and as this state is approached, the bed exhibits heterogeneity with increasing time and length scales. The formation of a glass results in the arrest of macroscopic particle motion and thus the loss of fluidization. Microscopic motion persists in this state, but the bed can be jammed by application of a small increase in flow rate. Thus a fluidized bed can serve as a test system for studies of glass formation and jamming.}, author = {Goldman, Daniel I. and Swinney, Harry L. }, citeulike-article-id = {2281519}, doi = {10.1103/PhysRevLett.96.145702}, journal = {Physical Review Letters}, keywords = {dyn-het, fluidized-bed, granular, jamming, journal-club}, number = {14}, pages = {145702}, posted-at = {2008-03-28 13:16:05}, priority = {0}, publisher = {APS}, title = {Signatures of Glass Formation in a Fluidized Bed of Hard Spheres}, url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal\&id=PRLTAO000096000014145702000001\&idtype=cvips\&gifs=yes}, volume = {96}, year = {2006} }

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TY - JOUR ID - goldman06 L3 - citeulike-article-id:2281519 TI - Signatures of Glass Formation in a Fluidized Bed of Hard Spheres JF - Physical Review Letters VL - 96 IS - 14 SP - 145702 EP - 145702 PB - APS N2 - We demonstrate that a fluidized bed of hard spheres during defluidization displays properties associated with formation of a glass. The final state is rate dependent, and as this state is approached, the bed exhibits heterogeneity with increasing time and length scales. The formation of a glass results in the arrest of macroscopic particle motion and thus the loss of fluidization. Microscopic motion persists in this state, but the bed can be jammed by application of a small increase in flow rate. Thus a fluidized bed can serve as a test system for studies of glass formation and jamming. KW - dyn-het KW - fluidized-bed KW - granular KW - jamming KW - journal-club AU - Goldman, Daniel AU - Swinney, Harry PY - 2006/// UR - http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRLTAO000096000014145702000001&idtype=cvips&gifs=yes ER -

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