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Updated: Jun 2, 2026

Glass-Based Devices to Generate Drops and Emulsions
Published on: April 5, 2022
Experiments and Lagrangian simulations on the formation of droplets in drop-on-demand mode
J R Castrejón-Pita1, N F Morrison, O G Harlen
1Institute for Manufacturing, University of Cambridge, Cambridge CB30FS, United Kingdom.
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.
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