Fig. 2: Droplet leading and trailing edge position, contact angle, and line spreading speed with time. | Microsystems & Nanoengineering

Fig. 2: Droplet leading and trailing edge position, contact angle, and line spreading speed with time.

From: An active self-cleaning surface system for photovoltaic modules using anisotropic ratchet conveyors and mechanical vibration

Fig. 2

We define the line speed as the derivative of the droplet edge position over time. a FOTS-TMS ARC design. The vibration stage acceleration and peak amplitude are 4.1 g and 0.41 mm, respectively, at 50 Hz. b Cytop-TMS ARC design. The vibration stage acceleration and peak amplitude are 1.1 g and 0.11 mm, respectively, at 50 Hz. g = 9.8 m/s2.

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