Steady representation of the homogeneous cooling state of a granular mixture

2012 ◽  
Author(s):  
M. J. Ruiz-Montero ◽  
J. Javier Brey
Keyword(s):  
Granular Mixture ◽  
Homogeneous Cooling State

Homogeneous cooling state for a granular mixture

1999 ◽  
Vol 60 (5) ◽  
pp. 5706-5713 ◽  
Author(s):  
Vicente Garzó ◽  
James Dufty
Keyword(s):  
Granular Mixture ◽  
Homogeneous Cooling State

Experimental observations of oscillations and segregation in a binary granular mixture

2006 ◽  
Vol 74 (4) ◽  
Author(s):  
Sparisoma Viridi ◽  
Malte Schmick ◽  
Mario Markus
Keyword(s):  
Granular Mixture

scholarly journals Scaling and aging in the homogeneous cooling state of a granular fluid of hard particles

2007 ◽  
Vol 40 (48) ◽  
pp. 14331-14342 ◽  
Author(s):  
J J Brey ◽  
A Prados ◽  
M I García de Soria ◽  
P Maynar
Keyword(s):  
Hard Particles ◽  
Granular Fluid ◽  
Homogeneous Cooling State

A Criteria for Size Separation Using Maximum Entropy Production

2009 ◽  
Author(s):  
Chuan-ping Liu ◽  
Li Wang ◽  
Min Jia ◽  
Lige Tong
Keyword(s):  
Entropy Production ◽  
Maximum Entropy ◽  
Stable State ◽  
Irreversible Processes ◽  
Entropy Production Rate ◽  
Absolute Maximum ◽  
Kinetic Temperature ◽  
Granular Mixture ◽  
Maximum Entropy Production ◽  
Size Separation

In order to study analytically the nature of the size separation in granular mixture, we present the maximum entropy production principle based on kinetic temperature of granular mixture. For simplicity we apply this principle to size separation of a sphere binary mixture in vibrated bed, and we find a new thermodynamic mechanism of size separation phenomenon. With the irreversible processes such as elastic collisions and frictions, the kinetic energy is dissipated rapidly in system, which induces the entropy production. By the fact that the entropy production rate always has the absolute maximum at the stable state of granular mixture, we find the crossover from “Brazil Nut Effect” to its reverse by changing particles size and density, and our result is about satisfied with Schnautz’s experiment.

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