info:eu-repo/semantics/article
Continuous deposition of a liquid thread onto a moving substrate. Numerical analysis and comparison with experiments
Fecha
2012-02Registro en:
Ubal, Sebastian; Xu, B.; Derby, B.; Grassia, P.; Continuous deposition of a liquid thread onto a moving substrate. Numerical analysis and comparison with experiments; American Society of Mechanical Engineers; Journal Of Fluids Engineering-transactions Of The Asme; 134; 2; 2-2012; 021301-1/17
0098-2202
CONICET Digital
CONICET
Autor
Ubal, Sebastian
Xu, B.
Derby, B.
Grassia, P.
Resumen
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.