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The flux profile of granular gas in compartmentalized system

Hu Hai-Yun Li Yin-Chang Tu Hong-En Liu Rui Zhang Zhao-Bu Hou Mei-Ying

The flux profile of granular gas in compartmentalized system

Hu Hai-Yun, Li Yin-Chang, Tu Hong-En, Liu Rui, Zhang Zhao-Bu, Hou Mei-Ying
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  • Abstract views:  2450
  • PDF Downloads:  866
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Publishing process
  • Received Date:  19 December 2008
  • Accepted Date:  05 January 2009
  • Published Online:  05 April 2009

The flux profile of granular gas in compartmentalized system

  • 1. (1)北京理工大学应用物理系,北京 100081; (2)中国科学院物理研究所北京凝聚态物理国家实验室,北京 100190; (3)中国科学院物理研究所北京凝聚态物理国家实验室,北京 100190;北京理工大学应用物理系,北京 100081

Abstract: Vibration driven compartmentalized granular gas is capable of clustering in one of the compartments,which is an effect called Maxwell demon phenomenon. One of the keys for understanding the Maxwell demon phenomenon is establishing a flux model. Based on granular hydrodynamics,Eggers deduced a simplified flux model which has been successfully used in describing the spontaneous symmetry breaking of granular gas in the compartmentalized system,but so far has not been able to predict the oscillation phenomenon of bidisperse granular gas. Experimentally studying the flux of mono-disperse granular gas in one compartment,we modify the flux model of Eggers to fit the experimental results. The modified flux model can be extended to the bidisperse granular case,and the oscillatory state can be well obtained by this modified flux model.

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