The lateral migration of red blood cells (RBCs) in confined channel flows is an important
ingredient of microcirculatory hydrodynamics and is involved in the development of a cell
free layer near vessel walls and influences the distribution of RBCs in networks. It is also
relevant to a number of lab-on-chip applications. This migration is a consequence of their
deformability and is due to the combined effects of hydrodynamic wall repulsion and the
curvature of the fluid velocity profile. We performed microfluidic experiments with dilute …