Auto-amplifying dynamic behavior of heap and convection in granular material |
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Authors: | Weizhong Chen Rongjue Wei |
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Affiliation: | (1) Institute of Acoustics and State Key Laboratory of Modem Acoustics, Nanjing University, 210093 Nanjing, China |
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Abstract: | Two experiments have been carried out to understand the physical characteristics of surface heap and internal convection of granular material subjected to vertical vibration. The results show that they have a clear auteamplifying behavior. An effective force leading to the heap and cunvection has been obtained, which includes the square and cubic terms of the local height. |
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Keywords: | heap convection auto-amplifying granular material |
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