title: Experiments and Lagrangian simulations on the formation of droplets in drop-on-demand mode.
abstract: The creation and evolution of millimeter-sized droplets of a Newtonian liquid generated on demand by the action of pressure pulses were studied experimentally and simulated numerically. The velocity response within a model, large-scale printhead was recorded by laser Doppler anemometry, and the waveform was used in Lagrangian finite-element simulations as an input. Droplet shapes and positions were observed by shadowgraphy and compared with their numerically obtained analogues.
authors.affiliation: Institute for Manufacturing, University of Cambridge, Cambridge CB30FS, United Kingdom.
authors.forename: J R
authors.initials: JR
authors.lastname: Castrejón-Pita
authors.forename: N F
authors.initials: NF
authors.lastname: Morrison
authors.forename: O G
authors.initials: OG
authors.lastname: Harlen
authors.forename: G D
authors.initials: GD
authors.lastname: Martin
authors.forename: I M
authors.initials: IM
authors.lastname: Hutchings