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物理学报. 2003, 52(4): 875-878.
doi: 10.7498/aps.52.875.
通道宽度和初始流量对颗粒稀疏流-密集流转变临界开口的影响
- 收稿日期: 2002-07-23
- 修回日期: 2002-08-28
- 刊出日期: 2003-02-05
English Abstract
The influence of channel width and inflow rate on the critical opening-size of granular flow in two-dimensional channels
- Received Date:
23 July 2002
- Accepted Date:
28 August 2002
- Published Online:
05 February 2003
Abstract: We have studied experimentlly the transition phenomenon of a granular flow from dilute flow to dense flow in two-dimensional channels. In the dense flow the outflow rate (Q) depends only on the opening (D) given by Q=aD3/2.For different inflow rates Q0 in a dilute flow, the critical opening-size with the channel relation of width (W) is given; and in a larger inflow, the critical opening-size is opproximately proportional to the square root of the inflow rate,Dc∝Q1/20.
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Keywords:
- granular matter /
- granular flow
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