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：

---

致密悬浮液的物理学


颗粒的致密悬浮液与许多应用相关，是开发失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，显然是在成分的微小变化下从液体变成固体，或者有趣的是，施加在它们身上的驱动力发生变化。接近无处不在的干扰转变（在某种程度上是玻璃和凝胶转变）的新兴物理学提供了共同的原理，可以对文献中报道的大量现象进行一致的解释。有鉴于此，我们回顾了关于粒子尺度物理学与宏观尺度流变学之间关系的现状。我们进一步展示了这一观点如何为密集悬架的连续体模型的开发开辟新的途径。