探讨激振频率和容器宽度对颗粒层中对流的影响
Probing that the vibrational frequency and the container widthinfluence on the convection in vibrated granular beds
The vibrational frequency f and the container width L influence on the convective motion of granules in vertically vibrated quasi-two-dimensional vessel.The experimental result shows: The number of convection rolls and the direction of the convective motion is strongly dependent on the vibrational frequency , and to a lesser extent on container width. The vibrational frequency and the container width both strongly influence on the intensity of convection. At fixed L and the intensity of convection is oscillatory change as f. At fixed f and there is a critical container width Lc . The intensity of convection is increased when L< Lc,and the intensity of convection is decreased when L> Lc.
颗粒物质 / 对流 / 能量耗散 {{custom_keyword}} /
granular matter / convection / friction {{custom_keyword}} /
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