Continuous Deposition of a Liquid Thread onto a Moving Substrate. Numerical Analysis and Comparison With Experiments

Ubal, S.; Xu, B.; Derby, B.; Grassia, P.

Abstract

The printing of a thin line of liquid onto a moving flat solid substrate was studied numerically. For a fixed value of the Capillary number, the window of steady state deposition was explored in terms of the substrate-nozzle gap and flow rate parameter space for two nozzle configurations: a nozzle pointing vertically at the plate and a nozzle slightly tilted towards the substrate motion direction. A lower limit for the flow rate was found, below which no steady state solutions could be obtained. This minimum flow rate increases as the nozzle stand-off and the nozzle tilting do. Solutions near this lower flow rate boundary were stable under a flow rate perturbation. The process was also studied experimentally and the measurements were compared with the corresponding numerical simulations, giving a fairly good agreement, except in the advancing front deposition region. [DOI: 10.1115/1.4005668]

Más información

Título según WOS: ID WOS:000302599000008 Not found in local WOS DB
Título de la Revista: JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
Volumen: 134
Número: 2
Editorial: ASME
Fecha de publicación: 2012
DOI:

10.1115/1.4005668

Notas: ISI