S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Journal Papers (저널논문_기계항공공학부)
Evolution of transient meniscus in a wettable microchannel for Newtonian fluid
- Kim, Seung Mo; Lee, Woo Il; Suh, Kahp Y.
- Issue Date
- Institute of Physics
- J. Mocromech. Microeng. 16 2692-6
- A simple numerical approach based on the volume of fluid (VOF) method reveals that a 'W'-shaped, transient meniscus is ubiquitous during the formation of a uniformly curved meniscus within a microchannel, which has been believed to be dominant for the transients. The time that is needed to maintain the transient meniscus is correlated with viscosity, surface tension and geometry of the cavity. A generalized correlation is presented to predict the persistent time of the transient meniscus in a wettable microchannel (contact angle, theta < 90 degrees) for Newtonian fluid.
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