Transport of suspensions consisting of monodisperse adhesive microparticles in a pressure‐driven duct flow with the Reynolds number in the range of 5.4–108 is analyzed by means of a coupled lattice Boltzmann method with the discrete element method. The influence of the adhesion on migration and agglomeration of particles is investigated. The results show that the suspensions undergo a transition from purely lateral focusing to completely agglomeration as the surface energy is increased. A dimensionless adhesion number, defined as the ratio of the adhesive force to the drag force, is employed to characterize the degree of agglomeration. It is found that all the particles come into agglomerates as the adhesion number reaches a critical value. Moreover, a detailed examination of size evolution and velocity illustrates that the agglomerates mainly grow spherically, and their velocities depend on the lateral positions rather than their sizes, as the Stokes number is far below one.

中文翻译：

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压力驱动风管流中粘性微粒悬浮液的迁移和结块

利用耦合格子玻尔兹曼法和离散元法分析了由单分散粘合剂微粒组成的悬浮液在雷诺数为5.4-108的压力驱动管道流中的传输。研究了粘附力对颗粒迁移和团聚的影响。结果表明，随着表面能的增加，悬浮液经历了从纯粹的侧向聚焦到完全团聚的转变。使用无量纲的附着数，其定义为附着力与阻力的比值，以表征团聚程度。已经发现，当粘附数达到临界值时，所有颗粒都发生团聚。此外，