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Discover more about the EPSRC Centres for Doctoral Training at the University
of Leeds


EPSRC Centre for Doctoral Training in Fluid Dynamics

Challenges for Inkjet Technology: Dynamic Surface Tension

Lead Industrial Supervisor

Changlong Sun, Ricoh UK Products Ltd


Dr Oliver Harlen (School of Mathematics) - lead academic supervisor, Dr Mark Walkley (School of Computing) and Prof Nik Kapur (School of Mechanical Engineering)


Microflows and Heat TransferParticulate Flows, Sediments and Rheology


Inkjet printing requires the precise generation and deposition of very small drops of liquid. It is widely used in graphical printing and is rapidly developing as a manufacturing technology. The processes of jetting and drop formation is strongly affected by fluid and surface rheology, which may be complex, particularly under the extreme conditions of high shear and extensions rates that occur during jetting. Currently it is difficult to predict whether a particular ink formulation will be “jettable”.  The aim of this project is to develop a mathematical model that will enable jetting characteristics to be predicted more accurately