Figure 4: Reversed surface flow induced by Marangoni effect with increased thermal conductivity of the substrate (k2 = 100 W/m·K) and the Marangoni number (Ma = 1000).
From: Discrete Element Model for Suppression of Coffee-Ring Effect
(a) The color map of temperature distribution during evaporation. (b) The velocity field of the circulatory flow at the side view. (c) The histogram of the location of newly adsorbed dimers during evaporation based on total 1,500,000 microspheres with 66.7% dimers (w/w). (d) The top view of newly adsorbed dimers (labeled red) at different time based on total 1,500,000 microspheres with 66.7% dimers (w/w).
