Figure 4
Retraction dynamics of the entrapped air film. (a) The film radius R measured with time t for oils and W-G mixtures. Here R and t are rescaled with R0 and τi, respectively. The solid line is for the theoretical inertial retraction, \(R(t)/{R}_{0}=\exp (-{C}_{i}t/{\tau }_{i})\), with Ci taken as 238,40,41. (b) The best-fit values of the proportional coefficients of liquids, Ci (red closed squares for oils and red open squares for W-G) and Cv (blue closed circles for oils and blue open circles for W-G), plotted as a function of Oh. Red and blue dashed lines are averages of data points. Red solid lines: Ci ≈ 2 for Oh < 0.1 and Ci ≈ Oh−1 for Oh > 10. Blue solid lines: Cv ≈ Oh for Oh < 0.1 and Cv ≈ 0.5 for Oh > 10.
