Dense granular flows in a vertical chute

Powders and Grains 2001 Pub Date : 2020-12-17 DOI:10.1201/9781003077497-98

F. Chevoir, Michaël Prochnow, P. Moucheront, F. D. Cruz, F. Bertrand, J. Guilbaud, P. Coussot, J. Roux

引用次数: 6

Abstract

Dense flows of dry grains in a vertical chute controlled by the orifice consist in a steady and uniform plug flow with a thin shear layer near the rough walls. Using magnetic resonance imaging, we present detailed measurements of velocity profiles, and discuss the influence of the shear rate and of the wall roughness in the shear zone.

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密集的颗粒在垂直溜槽中流动

干燥颗粒在垂直溜槽内的密集流动由孔板控制，形成稳定而均匀的塞流，在粗糙的壁面附近有一薄剪切层。利用磁共振成像技术，我们给出了速度剖面的详细测量结果，并讨论了剪切速率和剪切区壁面粗糙度的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Powders and Grains 2001

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