slender jet analysis – TechConnect Briefs

Modeling Drop Generation at the Microscale

Hanchak M.S., Furlani E.P., Eastman Kodak Company, US

In this presentation a numerical model is described for predicting drop generation from microscale liquid jets of Newtonian fluid. The model uses a one-dimensional slender-jet approximation to obtain the equations of motion for the free-surface [...]

Numerical Analysis of Nonlinear Deformation and Breakup of Slender Microjets with Application to Continuous Inkjet Printing

Furlani E.P., Eastman Kodak Company, US

Liquid microjets are inherently unstable and can be modulated in a controlled fashion to create steady streams of picoliter-sized droplets at frequency rates in the hundreds of kilohertz. Such modulation has been achieved using CMOS/MEMS [...]

Surface Tension Induced Instability of Viscous Liquid Jets

Furlani E.P., Delametter C.N., Chwalek J.M., Trauernicht D., Eastman Kodak Company, US

Viscous liquid jets are inherently unstable, and drop formation can be induced by various means including surface tension modulation. Furthermore, surface tension is temperature dependent, and can be modulated by locally heating the surface of [...]