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基于约束的颗粒分散流变学方法。

Constraint-Based Approach to Granular Dispersion Rheology.

机构信息

SUPA, School of Physics and Astronomy, The University of Edinburgh, King's Buildings, Peter Guthrie Tait Road, Edinburgh EH9 3FD, United Kingdom.

出版信息

Phys Rev Lett. 2018 Sep 21;121(12):128001. doi: 10.1103/PhysRevLett.121.128001.

DOI:10.1103/PhysRevLett.121.128001
PMID:30296154
Abstract

We present a phenomenological model for granular suspension rheology in which particle interactions enter as constraints to relative particle motion. By considering constraints that are formed and released by stress respectively, we derive a range of experimental flow curves in a single treatment and predict singularities in viscosity and yield stress consistent with literature data. Fundamentally, we offer a generic description of suspension flow that is independent of bespoke microphysics.

摘要

我们提出了一个用于颗粒悬浮流变学的唯象模型，其中颗粒间相互作用作为相对颗粒运动的约束条件。通过分别考虑由应力形成和释放的约束条件，我们在单次处理中得出了一系列实验流动曲线，并预测了与文献数据一致的粘度和屈服应力的奇点。从根本上说，我们提供了一种独立于特定微观物理的悬浮流通用描述。

相似文献

1
Constraint-Based Approach to Granular Dispersion Rheology.基于约束的颗粒分散流变学方法。
Phys Rev Lett. 2018 Sep 21;121(12):128001. doi: 10.1103/PhysRevLett.121.128001.
2
Unifying suspension and granular rheology.统一悬浮液和颗粒流变性。
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Flow-induced agitations create a granular fluid: effective viscosity and fluctuations.流动引起的搅动产生一种颗粒流体：有效粘度和涨落。
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4
Rheology and contact lifetimes in dense granular flows.密集颗粒流中的流变学与接触寿命
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Thermodynamically consistent fluid particle model for viscoelastic flows.用于粘弹性流动的热力学一致流体粒子模型。
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Shear rheology of molten crumb chocolate.熔融碎粒巧克力的剪切流变学
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7
Rheology of non-Brownian suspensions.非布朗悬浮液的流变学
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Computer simulation of concentrated fluid-particle suspension flows in axisymmetric geometries.轴对称几何形状中浓流体 - 颗粒悬浮流的计算机模拟。
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Viscosity of a concentrated suspension of rigid monosized particles.刚性单尺寸颗粒浓悬浮液的粘度。
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Conching chocolate is a prototypical transition from frictionally jammed solid to flowable suspension with maximal solid content.调温巧克力是一种典型的从摩擦固结的固体向最大固体含量的可流动悬浮体的转变。
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