Prediction of the velocity at which liquid separates from a moving contact line

Scott D. Schuetter; Timothy A. Shedd; Gregory F. Nellis

doi:10.1117/1.2727490

1 April 2007 Prediction of the velocity at which liquid separates from a moving contact line

Scott D. Schuetter, Timothy A. Shedd, Gregory F. Nellis

Author Affiliations +

Journal of Micro/Nanolithography, MEMS, and MOEMS, Vol. 6, Issue 2, 023003 (April 2007). https://doi.org/10.1117/1.2727490

Abstract

Liquid loss occurs at the receding contact line that forms when a substrate is withdrawn from a liquid. This behavior, often called film pulling, is fundamental to coating and cleaning processes, as well as other systems. There has been substantial prior work relative to understanding the static and dynamic behavior of the receding contact line and film pulling, but this work has focused primarily on operating conditions where the interfacial and viscous forces dominate. In the current work, experimental investigations are presented that identify a second regime, where inertial forces are dominant. These results are used to develop a semiempirical model for predicting the velocity at which an arbitrary liquid is deposited onto an arbitrary smooth substrate from the receding meniscus. The model is verified for a range of fluid properties and is accurate to within 20% mean average error.

©(2007) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Scott D. Schuetter, Timothy A. Shedd, and Gregory F. Nellis "Prediction of the velocity at which liquid separates from a moving contact line," Journal of Micro/Nanolithography, MEMS, and MOEMS 6(2), 023003 (1 April 2007). https://doi.org/10.1117/1.2727490

Published: 1 April 2007

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