Potential of Microchannel Flow for Agglomerate Breakage

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• 作者：J. J. Derksen ; D. Eskin
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2010
• 出版时间：November 3, 2010
• 年：2010
• 卷：49
• 期：21
• 页码：10633-10640
• 全文大小：296K
• 年卷期：v.49,no.21(November 3, 2010)
• ISSN：1520-5045

文摘

Direct simulations of laminar solid−liquid flow in microchannels with full resolution of the solid−liquid interfaces have been performed. The solids phase consists of simple agglomerates, assembled of monosized, spherical particles. The flow of the interstitial liquid is solved with the lattice-Boltzmann method. Solids and fluid dynamics are two-way coupled. The simulations keep track of the flow-induced forces in the agglomerates. The effects of agglomerate type (doublets, triplets, and quadruplets), solids loading, and channel geometry on (the statistics of the) flow and collision-induced forces has been investigated. By comparing these forces with agglomerate strength, we would be able to assess the potential of microchannels as agglomerate breakage devices.