wu_particlestraighspiralchannels_01

Figure 1: Top-down views of fluorescent streak images of flowing 15.5-μm-diameter particles at the outlet 4 cm downstream of straight channels with rectangular cross-section as a function of channel Reynolds number, ReC. (A): 100 μm x 50 μm; (B): 50 μm x 100 μm; (C): cross-sectional focusing locations.