Dense suspensions of particles are relevant to many applications and are a key platform for developing a fundamental physics of out-of-equilibrium systems. They present challenging flow properties, apparently turning from liquid to solid upon small changes in composition or, intriguingly, in the driving forces applied to them. The emergent physics close to the ubiquitous jamming transition (and to some extent the glass and gelation transitions) provides common principles with which to achieve a consistent interpretation of a vast set of phenomena reported in the literature. In light of this, we review the current state of understanding regarding the relation between the physics at the particle scale and the rheology at the macroscopic scale. We further show how this perspective opens new avenues for the development of continuum models for dense suspensions.

中文翻译：

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稠密悬浮液的物理学


颗粒的稠密悬浮液与许多应用相关，并且是开发非平衡系统基础物理学的关键平台。它们呈现出具有挑战性的流动特性，只要成分发生微小变化，或者有趣的是，施加在它们上的驱动力发生微小变化，它们显然就会从液体转变为固体。接近普遍存在的干扰转变（以及在某种程度上玻璃化和凝胶化转变）的新兴物理学提供了共同原理，可以利用这些原理对文献中报道的大量现象进行一致的解释。有鉴于此，我们回顾了目前对颗粒尺度物理学与宏观尺度流变学之间关系的理解状态。我们进一步展示了这种观点如何为稠密悬浮液连续介质模型的开发开辟新途径。