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Inertial lift forces in a square cross-section channel. (a) Schematic of the channel and particle geometry used in this work. (b) Inertial lift forces are simulated for a quarter of the channel cross section and shown in this vector plot for a/H = 0.22 and Rc = 80. Equilibrium positions are marked with circles. (c) Averaged confocal cross section for 10 µm particles flowing in a 50 × 40 µm channel reveals similar attractors at the channel faces.
