Velocity fluctuations inside two and three dimensional silos

Zuriguel Iker; Maza Diego; Janda Alvaro; Cruz Hidalgo Raul; Garcimartin Angel

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Velocity fluctuations inside two and three dimensional silos

机译：二维和三维孤岛内的速度波动

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摘要

In this paper we report experimental and numerical results on the velocity fluctuations of grains inside silos. Although simple models exist for the stationary and continuous approximation of the flow, the variability at the microscopic level (both ensemble averages and the fluctuations of individual particles around the average) reveal non-Gaussian statistics that resist a straightforward treatment. We also show that decreasing the orifice size causes an increase in the relative amplitude of the velocity fluctuations, meaning that the intermittency grows bigger.

机译：在本文中，我们报告了筒仓内部晶粒速度波动的实验和数值结果。尽管存在简单的模型来对流量进行静态和连续逼近，但微观水平的变化（整体平均值和平均值附近单个粒子的波动）显示了非高斯统计量，无法直接进行处理。我们还表明，减小孔口尺寸会导致速度波动的相对幅度增加，这意味着间歇性会变大。

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来源
《Granular matter》 |2019年第3期|47.1-47.9|共9页
作者
Zuriguel Iker; Maza Diego; Janda Alvaro; Cruz Hidalgo Raul; Garcimartin Angel;
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作者单位

Univ Navarra, Fac Ciencias, Dept Fis & Mat Apl, E-31080 Pamplona, Spain;

Univ Navarra, Fac Ciencias, Dept Fis & Mat Apl, E-31080 Pamplona, Spain;

Particle Analyt Ltd, Alrick Bldg,Kings Bldg, Edinburgh EH9 3BF, Midlothian, Scotland;

Univ Navarra, Fac Ciencias, Dept Fis & Mat Apl, E-31080 Pamplona, Spain;

Univ Navarra, Fac Ciencias, Dept Fis & Mat Apl, E-31080 Pamplona, Spain;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Silo; Hopper; Flow rate; Fluctuations;

机译：筒仓;料斗;流量;波动;

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专利

1. Velocity fluctuations inside two and three dimensional silos [J] . Zuriguel Iker, Maza Diego, Janda Alvaro, Granular matter . 2019,第3期

机译：两个和三维筒仓内的速度波动
2. The probability density functions of velocity fluctuations inside steady pressure-driven three-dimensional turbulent boundary layers [J] . Nakkasyan A. Theoretical and Computational Fluid Dynamics . 2003,第5期

机译：稳态压力驱动的三维湍流边界层内部速度波动的概率密度函数
3. THREE-DIMENSIONAL TRANSIENT HEAT, MASS, AND MOMENTUM TRANSFER MODEL TO PREDICT CONDITIONS OF CANOLA STORED INSIDE SILO BAGS UNDER CANADIAN PRAIRIE CONDITIONS: PART I. SOIL TEMPERATURE MODEL [J] . Jian F., Chelladurai V., Jayas D. S., Transactions of the ASABE . 2015,第4期

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4. Investigation of the velocity and pressure fluctuations distributions inside the turbulent horseshoe vortex system around a circular bridge pier [C] . G. Kirkil, G. Constantinescu, R. Ettema International Conference on Fluvial Hydraulics vol.1; 20060906-08; Lisbon(PT) . 2006

机译：圆形桥墩附近马蹄涡流系统内部速度和压力波动分布的研究
5. Two-dimensional blood flow velocity estimation using ultrasound speckle pattern dependence on scan direction and velocity. [D] . Xu, Tiantian. 2012

机译：使用超声斑点图案的二维血流速度估计值取决于扫描方向和速度。
6. Accuracy of the Flow Velocity and Three-directional Velocity Profile Measured with Three-dimensional Cine Phase-contrast MR Imaging: Verification on Scanners from Different Manufacturers [O] . Tomoya Watanabe, Haruo Isoda, Atushi Fukuyama, 2019

机译：三维电影相衬MR成像测量的流速和三向速度剖面的准确性：来自不同制造商的扫描仪的验证
7. Fluctuations of grains inside a discharging two-dimensional silo [O] . Garcimartin, A. (Ángel), Zuriguel, I. (Iker), Janda, A. (Álvaro), 2011

机译：出料的二维料仓内谷物的波动
8. Inside a Soviet ICBM Silo Complex: The SS-18 Silo Dismantlement Program at Derzhavinsk, Kazakhstan [R] . Matzko, J. R. 2000

机译：苏联ICBm silo综合体内：哈萨克斯坦Derzhavinsk的ss-18筒仓拆除计划

Velocity fluctuations inside two and three dimensional silos

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