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The dynamics of granular matter

 

作者: B. M. Schulz,   M. Schulz,   S. Herminghaus,  

 

期刊: AIP Conference Proceedings  (AIP Available online 1904)
卷期: Volume 708, issue 1  

页码: 126-127

 

ISSN:0094-243X

 

年代: 1904

 

DOI:10.1063/1.1764086

 

出版商: AIP

 

数据来源: AIP

 

摘要:

We present a numerical study of a shear‐induced solid‐fluid transition in wet granular matter in order to show the self‐organized critical behavior close to the transition point. The continuous time simulation is based on a simple model considering both the cohesive forces induced by the adsorbed liquid amount and the repulsive forces due to the hard core interaction of the granules. Dissipation is assumed to be entirely due to the hysteretic character of the cohesive forces. The aim of our analysis concerns the crossover from a solid like behavior to a mobile ergodic state under the influence of an external force fieldFexceeding the critical forceFc. Diffusion coefficients, dissipation and kinetic order parameters can be expressed as characteristic scaling laws. © 2004 American Institute of Physics

 

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