Particle stress in suspensions of soft objects

Particle stress in suspensions of soft objects
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软物体悬浮液中的颗粒应力

DOI:
10.1098/rsta.2011.0090
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发表时间:
2011
期刊:
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
--
通讯作者:
D. Raabe
D. Raabe
中科院分区:
--
文献类型:
--
作者:
T. Krüger;F. Varnik;D. Raabe

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在诸如胶体颗粒、胶囊或囊泡等扩展物体的悬浮液中,通常通过首先确定源自单个颗粒的应力(例如,通过对颗粒表面上的流体应力进行积分),然后将单个颗粒的贡献相加来评估颗粒对应力的贡献。虽然对于整个系统的平均应力计算是足够的,但这种方法不能正确地再现局部应力。在这项工作中,我们提出并验证了一种克服这一问题的平面方法的变体。该方法特别适用于多体相互作用,例如,红细胞的剪切和弯曲刚性。
In a suspension of extended objects such as colloidal particles, capsules or vesicles, the contribution of particles to the stress is usually evaluated by first determining the stress originating from a single particle (e.g. via integrating the fluid stress over the surface of a particle) and then adding up the contributions of individual particles. While adequate for a computation of the average stress over the entire system, this approach fails to correctly reproduce thelocalstress. In this work, we propose and validate a variant of the method of planes which overcomes this problem. The method is particularly suited for many-body interactions arising from, for example, shear and bending rigidity of red blood cells.
DOI: 10.1098/rsta.2011.0086
发表时间: 2010
期刊: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子: --
作者:
F. Janoschek;Francesca Mancini;Jens Harting;F. Toschi
通讯作者: F. Toschi
屈服应力流体中的轮廓钝化和流动阻塞:分子动力学研究。
DOI: 10.1103/physreve.77.011504
发表时间: 2008
期刊: Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子: --
作者:
F. Varnik;D. Raabe
通讯作者: D. Raabe