Abstract Wet fluidization occurs when small amounts of liquid are injected into a fluidized bed, causing liquid bridges to form between particles. These liquid bridges create complex interparticle forces with cohesion and dissipation due to surface tension and viscosity, respectively. Liquid bridging leads to significant changes in hydrodynamics, causing agglomeration of particles and in some cases defluidization. This article reviews prior work to understand wet fluidization, including microscale studies of individual liquid bridges and experimental and modeling techniques to understand liquid transport and changes in hydrodynamics in fluidized beds. The various effects on fluidization which have been observed are discussed, including efforts to map behavior into regimes based on liquid and operating parameters. This article concludes with an outlook on the future of wet fluidization research, highlighting major open questions in the field and important future studies.

中文翻译：

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气固流化与液体桥接：从建模角度回顾

摘要 当少量液体注入流化床时，会发生湿流化，导致颗粒之间形成液桥。由于表面张力和粘度，这些液桥分别产生具有内聚力和耗散的复杂颗粒间力。液体桥接会导致流体动力学发生显着变化，导致颗粒团聚，在某些情况下会导致脱流。本文回顾了之前了解湿流化的工作，包括对单个液桥的微观研究以及实验和建模技术，以了解流化床中的液体传输和流体动力学变化。讨论了已观察到的对流化的各种影响，包括努力将行为映射到基于液体和操作参数的状态。