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. 2018 May 16;12(3):034105. doi: 10.1063/1.5025677

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Copyright © 2018 Author(s)

Published by AIP Publishing.

1932-1058/2018/12(3)/034105/12/$30.00

PMC Copyright notice

FIG. 4. — Oscillation parameter study. (a) The compression process of the bubble when P_push is on. The fluid is primed to the chip by P_push. (b) The decompression process of the bubble when P_push is off. The fluid is driven by $Δ P$ to flow backwards. (c) Fluidic analogous RC circuit model to explain oscillation work principle. (d) Processing of experimental images. The OpenCV library was used to outline the interested region using green rectangles. Then, the image was inverted. The intensity along with the liquid position was shown, and the interfacial position was identified.³⁰ (e) Relative displacement in capillaries with lengths of 1 cm, 2 cm, 3 cm, and 4 cm (P_push = 0.05 MPa). (f) Relative characteristic D_max in capillaries with lengths of 1 cm, 2 cm, 3 cm, and 4 cm (P_push = 0.05 MPa). (g) Characteristic compression time (T) in capillaries with lengths of 1 cm, 2 cm, 3 cm, and 4 cm (P_push = 0.05 MPa).