Effects of reducing the reactor diameter on the dense gas-solid fluidization of very heavy particles: 3D numerical simulations

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• 作者：Renaud Ansart^a ; ^{renaud.ansart@ensiacet.fr} ; Florence Vanni^a ; ^b ; Brigitte Caussat^a ; Carine Ablitzer^b ; Mé ; ryl Brothier^c
• 关键词：Fluidization ; CFD simulation ; Very dense particles suspension ; Euler&ndash ; Euler modeling ; Micro fluidized bed
• 刊名：Chemical Engineering Research and Design
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：117
• 期：Complete
• 页码：575-583
• 全文大小：3000 K
• 卷排序：117

文摘

3D NEPTUNE_CFD simulations are performed via an Eulerian n-fluid approach. The code is able to predict the fluidized bed behavior of dense tungsten particles. The mobility of these very dense particles is very low into the bed. The reduction of column diameter from 5 to 2 cm decreases the solid mixing. The results confirm the existence of wall effects in the column of 2 cm.