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摘要翻译：
随着应变幅值或体积分数的增加，悬浮在粘性流体中并在极低雷诺数下受到振荡剪切的非布朗颗粒集合呈现出明显的动力学相变，从可逆到不可逆的行为分离出来。我们给出了这个现象的一个简单模型，在此基础上我们论证了这种转变存在于守恒DP模型或等效的甘露聚糖模型的普适类中。这导致了对大量实验观测物标度行为的预测。因此，振荡剪切下的非布朗悬浮液可能构成了非活性-活性相变的第一个实验实现，这种相变不属于常规定向渗流的普遍性类别。
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英文标题：
《Universality Class of the Reversible-Irreversible Transition in Sheared
Suspensions》
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作者：
Gautam I. Menon and Sriram Ramaswamy
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最新提交年份：
2009
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分类信息：
一级分类：Physics 物理学
二级分类：Soft Condensed Matter 软凝聚态物质
分类描述：Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜，聚合物，液晶，玻璃，胶体，颗粒物质
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一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
Collections of non-Brownian particles suspended in a viscous fluid and subjected to oscillatory shear at very low Reynolds number have recently been shown to exhibit a remarkable dynamical phase transition separating reversible from irreversible behaviour as the strain amplitude or volume fraction are increased. We present a simple model for this phenomenon, based on which we argue that this transition lies in the universality class of the conserved DP models or, equivalently, the Manna model. This leads to predictions for the scaling behaviour of a large number of experimental observables. Non-Brownian suspensions under oscillatory shear may thus constitute the first experimental realization of an inactive-active phase transition which is not in the universality class of conventional directed percolation.
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PDF链接：
https://arxiv.org/pdf/801.3881
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