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Transfer of a microfluid to a stochastic fibre network
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics. (Fibre-based Material Technology)
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics. (Fibre-based Material Technology, FSCN)
FPInnovations-Paprican, 570 boul. St-Jean, Pointe-Claire, Québec, Canada.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics. (Fibre-based Material Technology)
2011 (English)In: Journal of Fluids and Structures, ISSN 0889-9746, E-ISSN 1095-8622, Vol. 27, no 7, p. 937-946Article in journal (Refereed) Published
Abstract [en]

The transfer of a microscopic fluid droplet from a flat surface to a deformable stochastic fibre 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 fibre network is modelled 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 fibre 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 7, p. 937-946
Keywords [en]
fibre network, flexo, fluid-structure interaction, fluid transfer, moving boundaries, two-phase flow
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-11295DOI: 10.1016/j.jfluidstructs.2011.06.003ISI: 000295300900004Scopus ID: 2-s2.0-80052260413OAI: oai:DiVA.org:miun-11295DiVA, id: diva2:297992
Projects
Nip mechanics and hydrodynamics of flexo post printing and print qualityAvailable from: 2010-02-19 Created: 2010-02-19 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Nip Mechanics, Hydrodynamics and Print Quality in Flexo Post-Printing
Open this publication in new window or tab >>Nip Mechanics, Hydrodynamics and Print Quality in Flexo Post-Printing
2010 (English)Doctoral thesis, comprehensive summary (Other academic)
Place, publisher, year, edition, pages
Sundsvall: Kopieringen, 2010
National Category
Chemical Engineering
Identifiers
urn:nbn:se:miun:diva-11347 (URN)
Public defence
(English)
Supervisors
Projects
Nip Mechanics and Hydrodynamics of Flexo Post-Printing and Print Quality
Available from: 2011-01-14 Created: 2010-03-05 Last updated: 2011-01-14Bibliographically approved

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Holmvall, MartinUesaka, TetsuLindström, Stefan

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