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arXiv 1906.01129cond-mat.soft
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格子玻尔兹曼方法与活性流体

Lattice Boltzmann Methods and Active Fluids

Livio Nicola Carenza, Giuseppe Gonnella, Antonio Lamura, Giuseppe Negro, Adriano Tiribocchi

摘要:

我们回顾了活跃的流体,特别注意流体动力学连续模型和格子玻尔兹曼方法(LBM)在这一领域的使用的艺术状态。我们提出的热力学的活性流体,在液晶建模适合于描述大规模组织的活性系统,以及其他有效的唯象模型。我们讨论如何LBM可以实现解决流体动力学的活性物质,从一个简单的流体的情况下,我们明确恢复连续方程的Chapman-Enskog扩展。超越这个简单的情况下,我们总结了如何LBM可以用来处理复杂的和活跃的流体。然后,我们回顾了最近的事态发展有关的一些相关主题的活性物质,已经通过LBM研究:自发流动,自推进液滴,活性乳液,流变学,主动湍流,和活性胶体。

英文摘要:

We review the state of the art of active fluids with particular attention to hydrodynamic continuous models and to the use of Lattice Boltzmann Methods (LBM) in this field. We present the thermodynamics of active fluids, in terms of liquid crystals modelling adapted to describe large-scale organization of active systems, as well as other effective phenomenological models. We discuss how LBM can be implemented to solve the hydrodynamics of active matter, starting from the case of a simple fluid, for which we explicitly recover the continuous equations by means of Chapman-Enskog expansion. Going beyond this simple case, we summarize how LBM can be used to treat complex and active fluids. We then review recent developments concerning some relevant topics in active matter that have been studied by means of LBM: spontaneous flow, self-propelled droplets, active emulsions, rheology, active turbulence, and active colloids.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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