A simple criterion for filament break-up in drop-on-demand inkjet printing
Jets from drop-on-demand inkjet print-heads consist of a main drop with a trailing filament, which either condenses into the main drop, or breaks up into satellite drops. Filament behaviour is quantitatively similar to that of larger, free symmetrical filaments, and can be predicted from the aspect...
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Veröffentlicht in: | Physics of fluids (1994) 2013-02, Vol.25 (2) |
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creator | Hoath, S D Jung, S Hutchings, I M |
description | Jets from drop-on-demand inkjet print-heads consist of a main drop with a trailing filament, which either condenses into the main drop, or breaks up into satellite drops. Filament behaviour is quantitatively similar to that of larger, free symmetrical filaments, and can be predicted from the aspect ratio and Ohnesorge number. Symmetrical filaments generated from inkjet print-heads show the same behaviour. A simple model, based on competition between the processes of axial shortening and radial necking, predicts the critical aspect ratio below which the jet condenses into a single drop. The success of this simple criterion supports the underlying physical model. |
doi_str_mv | 10.1063/1.4790193 |
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source | AIP Journals Complete; AIP Digital Archive; Alma/SFX Local Collection |
subjects | Aspect ratio Computational fluid dynamics Condensing Criteria Filaments Inkjet printing Jets Mathematical models |
title | A simple criterion for filament break-up in drop-on-demand inkjet printing |
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