Air-flow oscillations in inkjet print-zones give rise to undesirable print defects due to misplacement of low Stokes number satellite droplets. The problem is studied numerically using a novel body-force approach which averages the entrainment, due to the multitude of high Stokes number main droplets, over the print-zone volume. The instability seems to occur because of deformation of the primary vortex upstream of the print-zone. It is also shown that introducing extra flow in the direction of the paper motion is an effective remedy for the oscillations.
%0 Conference Paper
%1 mallinson2020threedimensional
%A Mallinson, Sam
%A Aquino, Andre
%A McBain, Geordie
%A Horrocks, Glenn
%A Barber, Tracie
%A de, Charitha
%A Yeoh, Guang
%B Proceedings of the 22nd Australasian Fluid Mechanics Conference
%D 2020
%E Chanson, Hubert
%E Brown, Richard
%I Australasian Fluid Mechanics Society
%K 76d05-incompressible-navier-stokes-equations 76e09-stability-and-instability-of-nonparallel-flows 76m12-finite-volume-methods-in-fluid-mechanics 76t10-liquid-gas-two-phase-flows-bubbly-flows ink-jet openfoam
%N 201
%R 10.14264/45fd9cf
%T Three-dimensional numerical simulation of air-flow in inkjet print-zones
%U https://espace.library.uq.edu.au/view/UQ:45fd9cf
%X Air-flow oscillations in inkjet print-zones give rise to undesirable print defects due to misplacement of low Stokes number satellite droplets. The problem is studied numerically using a novel body-force approach which averages the entrainment, due to the multitude of high Stokes number main droplets, over the print-zone volume. The instability seems to occur because of deformation of the primary vortex upstream of the print-zone. It is also shown that introducing extra flow in the direction of the paper motion is an effective remedy for the oscillations.
%@ 9781742723419
@inproceedings{mallinson2020threedimensional,
abstract = {Air-flow oscillations in inkjet print-zones give rise to undesirable print defects due to misplacement of low Stokes number satellite droplets. The problem is studied numerically using a novel body-force approach which averages the entrainment, due to the multitude of high Stokes number main droplets, over the print-zone volume. The instability seems to occur because of deformation of the primary vortex upstream of the print-zone. It is also shown that introducing extra flow in the direction of the paper motion is an effective remedy for the oscillations.},
added-at = {2020-12-15T00:09:14.000+0100},
author = {Mallinson, Sam and Aquino, Andre and McBain, Geordie and Horrocks, Glenn and Barber, Tracie and de, Charitha and Yeoh, Guang},
biburl = {https://www.bibsonomy.org/bibtex/273a47e6ab79005e6c9851044f9d0f955/gdmcbain},
booktitle = {Proceedings of the 22nd Australasian Fluid Mechanics Conference},
doi = {10.14264/45fd9cf},
editor = {Chanson, Hubert and Brown, Richard},
eventdate = {7-10 December 2020},
interhash = {c55208f41d41d7352fd579492a8037de},
intrahash = {73a47e6ab79005e6c9851044f9d0f955},
isbn = {9781742723419},
keywords = {76d05-incompressible-navier-stokes-equations 76e09-stability-and-instability-of-nonparallel-flows 76m12-finite-volume-methods-in-fluid-mechanics 76t10-liquid-gas-two-phase-flows-bubbly-flows ink-jet openfoam},
month = dec,
number = 201,
publisher = {Australasian Fluid Mechanics Society},
timestamp = {2020-12-15T00:11:04.000+0100},
title = {Three-dimensional numerical simulation of air-flow in inkjet print-zones},
url = {https://espace.library.uq.edu.au/view/UQ:45fd9cf},
venue = {Brisbane},
year = 2020
}