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The impact of ink-jet droplets on a paper-like structure
KTH, School of Engineering Sciences (SCI), Mechanics, Physicochemical Fluid Mechanics.ORCID iD: 0000-0003-2830-0454
2011 (English)In: Fluid Dynamics and Materials Processing, ISSN 1555-2578, Vol. 7, no 4, 389-402 p.Article in journal (Refereed) Published
Abstract [en]

Inkjet technology has been recognized as one of the most successful and promising micro-system technologies. The wide application areas of printer heads and the increasing demand of high quality prints are making ink consumption and print see-through important topics in the inkjet technology. In the present study we investigate numerically the impact of ink droplets onto a porous material that mimics the paper structure. The mathematical framework is based on a free energy formulation, coupling the Cahn-Hilliard and Navier Stokes equations, for the modelling of the two-phase flow. The case studied here consists of a multiphase flow of air-liquid along with the interaction between a solid structure and an interface. In order to characterize the multiphase flow characteristics, we investigate the effects of surface tension and surface wettability on the penetration depth and spreading into the paper-like structure.

Place, publisher, year, edition, pages
Tech Science Press , 2011. Vol. 7, no 4, 389-402 p.
Keyword [en]
Multiphase flow, wetting surface, droplet impact, Cahn-Hilliard
National Category
Fluid Mechanics and Acoustics
URN: urn:nbn:se:kth:diva-89354DOI: 10.3970/fdmp.2011.007.389ScopusID: 2-s2.0-84856578442OAI: diva2:502932
Swedish Research Council, 2008-5072
Qc 20120215Available from: 2012-02-15 Created: 2012-02-14 Last updated: 2012-02-15Bibliographically approved

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