A NOTE ON CAPILLARY INVASION IN NON-UNIFORM CHANNELS

Jari Hyväluoma ()
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Jari Hyväluoma: MTT Agrifood Research Finland, Soil and Plant Nutrition, FI-31600 Jokioinen, Finland

International Journal of Modern Physics C (IJMPC), 2009, vol. 20, issue 12, 1903-1909

Abstract: We investigate imbibition of a wetting liquid in power-law-shaped channels by numerical simulations with a two-phase lattice Boltzmann model. At short times, the dynamics of the imbibition follows diffusive scaling similar to that in uniform capillaries, but at longer times power-law behavior with exponent depending on the channel shape changes is observed. The observed behavior is in exact agreement with a recent theory of Reyssat and co-workers.1

Keywords: Imbibition; capillary rise; wetting; lattice Boltzmann; 47.11.-j; 47.55.dr; 47.55.nb (search for similar items in EconPapers)
Date: 2009
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DOI: 10.1142/S0129183109014801

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