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Computational inertial microfluidics: a review.
Lab on a Chip ( IF 6.1 ) Pub Date : 2020-02-18 , DOI: 10.1039/c9lc01022j
Sajad Razavi Bazaz 1 , Ali Mashhadian 2 , Abbas Ehsani 3 , Suvash Chandra Saha 4 , Timm Krüger 5 , Majid Ebrahimi Warkiani 6
Affiliation  

Since the discovery of inertial focusing in 1961, numerous theories have been put forward to explain the migration of particles in inertial flows, but a complete understanding is still lacking. Recently, computational approaches have been utilized to obtain better insights into the underlying physics. In particular, fundamental aspects of particle focusing inside straight and curved microchannels have been explored in detail to determine the dependence of focusing behavior on particle size, channel shape, and flow Reynolds number. In this review, we differentiate between the models developed for inertial particle motion on the basis of whether they are semi-analytical, Navier-Stokes-based, or built on the lattice Boltzmann method. This review provides a blueprint for the consideration of numerical solutions for modeling of inertial particle motion, whether deformable or rigid, spherical or non-spherical, and whether suspended in Newtonian or non-Newtonian fluids. In each section, we provide the general equations used to solve particle motion, followed by a tutorial appendix and specified sections to engage the reader with details of the numerical studies. Finally, we address the challenges ahead in the modeling of inertial particle microfluidics for future investigators.

中文翻译:

计算惯性微流体:审查。

自从1961年发现惯性聚焦以来,提出了许多理论来解释颗粒在惯性流中的迁移,但是仍然缺乏完整的理解。近来,已经使用计算方法来获得对基础物理学的更好的见解。特别地,已经详细研究了在直线和弯曲微通道内进行粒子聚焦的基本方面,以确定聚焦行为对粒径,通道形状和流雷诺数的依赖性。在这篇综述中,我们基于惯性粒子运动是基于半解析,基于Navier-Stokes还是基于格子Boltzmann方法建立的模型进行区分。这篇评论为考虑惯性粒子运动建模的数值解提供了一个蓝图,是否可变形或刚性,球形或非球形,以及是否悬浮在牛顿流体或非牛顿流体中。在每个部分中,我们提供用于求解粒子运动的通用方程式,然后提供教程附录和指定的部分,以使读者了解数值研究的详细信息。最后,我们为将来的研究人员解决了惯性粒子微流体建模中的挑战。
更新日期:2020-03-19
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