Figure 8. Schematic of the computational domain for rectangular microfluidic channel with a crevice.

The overall half-height of the channel was 1.5 mm, and the depth is 0.1 mm. The domain only included a portion of the overall 3 cm length of the experimental channel. The height of the crevice was 0.125 mm and lengths, L_c, of the crevices were 0.075 mm and 0.137 mm. The inlet velocity was 0.0173 m/s (Re = 32.30). A and B indicate upstream and downstream corners of the crevice, respectively.