Journal
PHYSICAL REVIEW LETTERS
Volume 110, Issue 10, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.108101
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- CNES
- ESA
- SSTC/ESA-PRODEX (Services Scientifiques Techniques et Culturels/European Space Agency-Programmes de Developpement d'experiences) [90171]
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The distribution of red blood cells (RBCs) in a confined channel flow is inhomogeneous and shows a marked depletion near the walls due to a competition between migration away from the walls and shear-induced diffusion resulting from interactions between particles. We investigated the lift of RBCs in a shear flow near a wall and measured a significant lift velocity despite the tumbling motion of cells. We also provide values for the collective and anisotropic shear-induced diffusion of a cloud of RBCs, both in the direction of shear and in the direction of vorticity. A generic down-gradient subdiffusion characterized by an exponent 1/3 is highlighted. DOI: 10.1103/PhysRevLett.110.108101
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