Evaporation of a thin droplet in a shallow well: theory and experiment

Motivated by the industrial manufacture of organic light-emitting-diode displays, we formulate and analyse a mathematical model for the evolution of a thin droplet in a shallow axisymmetric well of rather general shape both before and after touchdown that accounts for the spatially non-uniform evapo...

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Bibliographic Details
Published inJournal of fluid mechanics Vol. 927
Main Authors D'Ambrosio, Hannah-May, Colosimo, Teresa, Duffy, Brian R., Wilson, Stephen K., Yang, Lisong, Bain, Colin D., Walker, Daniel E.
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 25.11.2021
Subjects
Aspect ratio
Droplets
Evaporation
Investigations
JFM Papers
LCDs
Liquid crystal displays
Mathematical analysis
Mathematical models
Organic light emitting diodes
capillary flows
drops
condensation/evaporation
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Summary:Motivated by the industrial manufacture of organic light-emitting-diode displays, we formulate and analyse a mathematical model for the evolution of a thin droplet in a shallow axisymmetric well of rather general shape both before and after touchdown that accounts for the spatially non-uniform evaporation of the fluid, perform physical experiments using three cylindrical wells with different small aspect ratios, and validate the mathematical model by comparing the present experimental results with the corresponding theoretical predictions for a cylindrical well.
ISSN:0022-1120
1469-7645
DOI:10.1017/jfm.2021.772