Segregation of a granular binary mixture in a rotating drum: A critical phenomenon

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题名:	Segregation of a granular binary mixture in a rotating drum: A critical phenomenon
作者:	Jia,LC;Lai,PY;Chan,CK
贡献者:	物理研究所
关键词:	REVERSIBLE AXIAL SEGREGATION;SELF-ORGANIZED CRITICALITY;MEDIA
日期:	1998
上传时间:	2010-07-08 14:05:01 (UTC+8)
出版者:	中央大學
摘要:	The segregation phenomena of a 1:1 mixture of grain particles with different frictional properties in a rotating drum are studied by simulations. The surface flow is modeled by extending the rules from sandpile models while the rotation is modeled by a solid rotation. Radial segregation will occur only if the rotational transport rate omega is less than some critical value omega(c). Our results show that such a segregation can be described by a non-equilibrium critical phase transition in the steady state with the particle transport rate playing the role of the temperature. Employing finite-size scaling analysis similar to standard critical phenomena, critical exponents for the order parameter and its fluctuation are also obtained numerically.
關聯:	CHINESE JOURNAL OF PHYSICS
显示于类别:	[物理研究所] 期刊論文

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