Issue 14, 2019

Self-organization of red blood cell suspensions under confined 2D flows

Abstract

Dynamic self-organized structures with long-range order have been observed in emulsions and suspensions of particles under confined flows. Here, experiments on red blood cell suspensions under quasi-2D confined flows and numerical simulations were combined to explore long-distance self-organization as a function of the channel width, red blood cell concentration and flow rate. They reveal and quantitatively describe the existence of red blood cell long-range alignments and heterogeneous cross-stream concentration profiles characterized by red blood cell-enriched bands parallel to the flow. Numerical simulations show that, in addition to the degree of lateral confinement, the key factor for the structural self-organization of a suspension of particles under a confined flow is the deformability of the constituent particles.

Graphical abstract: Self-organization of red blood cell suspensions under confined 2D flows

Supplementary files

Article information

Article type
Paper
Submitted
19 Dec 2018
Accepted
12 Mar 2019
First published
14 Mar 2019

Soft Matter, 2019,15, 2971-2980

Self-organization of red blood cell suspensions under confined 2D flows

C. Iss, D. Midou, A. Moreau, D. Held, A. Charrier, S. Mendez, A. Viallat and E. Helfer, Soft Matter, 2019, 15, 2971 DOI: 10.1039/C8SM02571A

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