Inkjet deposition of lines onto thin moving porous media - experiments and simulations

Vignesh Murali, Gianmarco Venditti, Jos C.H. Zeegers, Anton A. Darhuber (Corresponding author)

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9 Citaten (Scopus)

Samenvatting

We have studied the deposition of lines of water onto a thin porous medium by means of a droplet-on-demand, single-nozzle inkjet system. We systematically varied the substrate speed and the droplet frequency. Optical transmission imaging was used to measure the dynamic moisture distribution in the substrate in conjunction with infrared thermography to determine the in-plane temperature distribution of the paper. The temperature of the paper becomes non-uniform due to evaporative cooling. Furthermore, we have developed a two-dimensional model coupling the Richards equation for moisture transport in unsaturated porous media with evaporative mass loss and heat transfer. The results of the numerical simulations agree qualitatively well with the measured data.

Originele taal-2Engels
Artikelnummer121466
Aantal pagina's11
TijdschriftInternational Journal of Heat and Mass Transfer
Volume176
DOI's
StatusGepubliceerd - sep. 2021

Bibliografische nota

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© 2021 The Author(s)

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