1. Factors of the Transition from Dilute Flow to Dense Flow in Two-Dimensional Channel
- Author
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Guang-Lei Xu, Xun-Sheng Zhang, Wei Chen, De-Song Bao, Meiying Hou, Kunquan Lu, Zheng-Quan Pan, and Guo-Qi Hu
- Subjects
Materials science ,Flow (mathematics) ,Outflow rate ,Statistical and Nonlinear Physics ,Inflow ,Mechanics ,Channel width ,Condensed Matter Physics ,Inflow rate ,Open-channel flow ,Communication channel - Abstract
Granular flow of steel beads from dilute flow to dense flow on an inclined two-dimensional channel is studied. The initial inflow Q0 is always a dilute flow. A transition from dilute to dense is observed when D≤Dc. In the dense flow the outflow rate (Q) depends only on opening (D), given by [Formula: see text]. For different inflow rate Q0 in the dilute flow case, the relation between the transition critical exit width (Dc) and the channel width (W) is given. And in larger inflow, the critical exit width is approximately in proportion to the square root of inflow rate, [Formula: see text].
- Published
- 2003