Influence of granule velocity on gravity-driven granular flow |
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| Authors: | Decai Huang Gang Sun Kunquan Lu |
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| Institution: | a Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, China
b Beijing National Laboratory for Condensed Matter Physics and Key Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | In this Letter, we present the results of our study on the influence of granule velocity on the granular flow state. The maximum outflow rate of the dilute flow state increases with an increase in granule velocity, whereas the outflow rate of the dense flow state remains unchanged. In addition, increasing granule velocity can extend the region of the dilute flow state and shrink that of the dense flow state. These observations can be explained by the relationship between the flow rate and the packing fraction at the bottleneck under a fixed particle number condition. |
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| Keywords: | Granular flow Flow state Numerical simulation |
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