Contact between gas and liquid at the moving wall was indirectly evaluated using an experimental approach. We characterized the gas-liquid contact via meniscus shape using a purpose-built experimental system that consisted of an experimental device, electronic and control scheme, and optics. We looked at the resulting meniscus by the moving wall, as the wall was moving out of the liquid pool with constant velocity. Parameters of receding dynamic contact angle and maximum meniscus height were determined for 3 different water-ethanol binary mixtures and wall velocities between 0,1 mm s^(-1) and 2 mm s^(-1). Experimental conditions correspond to capillary numbers from 1,25 × 10^(-6) to 9,06 × 10^(-5). We have concluded that the maximum meniscus height decreases with the increase of ethanol in the binary mixture while remaining constant with the increase in velocities. Receding dynamic contact angle increases with the increase of ethanol in the binary mixture, and remains constant with increases in velocity.
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