Determination of bulk solid concentration changes during granular flow in a model silo with ECT sensors
Determination of bulk solid concentration changes during granular flow in a model silo with ECT sensors
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DOI：
10.1016/j.ces.2008.08.035
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发表时间：
2009-01-01
影响因子：
4.7
通讯作者：
Grudzien, K.
中科院分区：
文献类型：
--
作者：
Niedostatkiewicz, M.;Tejchman, J.;Grudzien, K.
在圆筒形模型筒仓中进行了不同初始密度和筒仓壁粗糙度的试验。采用电容层析成像（ECT）传感器测量了模型筒仓内颗粒流动过程中固体浓度的变化。在筒仓流动过程中，发生了与轰鸣声有关的强烈动态效应。局部一维（ID）和横截面的2D干砂中的固体浓度的演变过程中筒仓放电进行了观察。从原始数据估计I D现象，并且通过用线性反投影算法求解逆问题从重建数据获得2D现象。(c)2008爱思唯尔有限公司保留所有权利。
Experiments in a cylindrical model silo were carried out with different initial densities of sand and silo wall roughness. Solid concentration changes during granular flow in the model silo were measured with electrical capacitance tomography (ECT) sensors. During silo flow, strong dynamic effects connected with booming sound occurred. Local one-dimensional (ID) and cross-sectional 2D evolutions of solid concentrations in dry sand during silo discharge were observed. The I D phenomena were estimated from the raw data and the 2D phenomena were obtained from the reconstructed data by solving an inverse problem with a linear back projection algorithm. (c) 2008 Elsevier Ltd. All rights reserved.