Effect of Surface Structure on Liquid Wettability at ... - COMSOL.com
Effect of Surface Structure on Liquid Wettability at ... - COMSOL.com
Effect of Surface Structure on Liquid Wettability at ... - COMSOL.com
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Reflectivity/Interferometry Technique<strong>Liquid</strong> VaporInterfaceVAPORLIQUIDSOLIDAdsorbed FilmMeniscusVarying thickness <str<strong>on</strong>g>of</str<strong>on</strong>g> the meniscusproduces an interference p<strong>at</strong>ternInterference p<strong>at</strong>tern analyzed to obtaingray value <strong>at</strong> each pixelG (x) =G(x) − G min (x)G max(x) − G min(x)RL(x) = G (x) ⎡⎣ RL max− RL min⎤ ⎦ + RL minRL(x) = α + β cos2φ l (δ )κ + β cos2φ l(δ )Gray Value (a. u.)230210190170150130G oG maxGG min0 20 40 60Distance (µm)<strong>COMSOL</strong> User's C<strong>on</strong>ference, Bost<strong>on</strong> 5
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