Abstract
Conjugate heat transfer (CHT) in thermal inkjet printheads is investigated using numerical simulations. The simulation code is compared against analytical solutions to relatively simple problems: fully developed forced convection in a planar channel, and conduction against convection in plug flow. Comparisons are also made with earlier numerical studies of flow over a backward-facing step with a heated downstream wall. Finally, some practical models of thermal inkjet printheads are considered, and the implications of the results discussed.
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