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Transfer of a microfluid to a stochastic fiber network
SCA R&D Centre, Sundsvall, Sweden. (FSCN)
Fibre Science and Communication Network, Mid Sweden University. (FSCN)
FPInnovations-Paprican, St-Jean, Pointe-Claire, Québec, Canada.
Department of Fibre and Polymer Technology, Stockholm, Sweden. (FSCN)ORCID iD: 0000-0002-1503-8293
2011 (English)In: Journal of Fluids and Structures, ISSN 0889-9746, Vol. 27, no 11, 937-946 p.Article in journal (Refereed) PublishedText
Abstract [en]

The transfer of a microscopic fluid droplet from a flat surface to a deformable stochastic fiber network is investigated. Fibre networks are generated with different levels of surface roughness, and a two-dimensional, two-phase fluid-structure model is used to simulate the fluid transfer. In simulations, the Navier-Stokes equations and the Cahn-Hilliard phase-field equations are coupled to explicitly include contact line dynamics and free surface dynamics. The compressing fiber network is modeled as moving immersed boundaries. The simulations show that the amount of transferred fluid is approximately proportional to the contact area between the fluid and the fiber network. However, areas where the fluid bridges and never actually makes contact with the substrate must be subtracted.

Place, publisher, year, edition, pages
2011. Vol. 27, no 11, 937-946 p.
Keyword [en]
Fibre network;Flexo;Fluid–structure interaction;Fluid transfer;Moving boundaries;Two-phase flow
National Category
Fluid Mechanics and Acoustics
URN: urn:nbn:se:liu:diva-125202DOI: 10.1016/j.jfluidstructs.2011.06.003OAI: diva2:903650
Available from: 2016-02-16 Created: 2016-02-16 Last updated: 2016-03-01

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Lindström, Stefan B
Fluid Mechanics and Acoustics

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