Capillary filling dynamics of water in nanopores

Bakli, Chirodeep ; Chakraborty, Suman (2012) Capillary filling dynamics of water in nanopores Applied Physics Letters, 101 (15). Article ID 153112. ISSN 0003-6951

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We portray a universal description of dynamic slip-stick behavior of water flowing through nanoscale pores. Based on fundamental molecular transport considerations, we derive a generalized constitutive model for describing resistive forces acting on the water column in a capillary that is being dynamically filled, as a combined function of the meniscus height, surface wettability, and roughness. This effectively acts like a unique signature of nanopore imbibition characteristics of water, which, when substituted in a simple one-dimensional force balance model agrees quantitatively with results from molecular dynamics simulations for a general class of problems, without necessitating the employment of any artificially tunable fitting parameters.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
ID Code:100749
Deposited On:06 Jan 2017 11:54
Last Modified:06 Jan 2017 11:54

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