Limeygreg
based on what I can mine via google, it seems that the conventional convection 'model' is not too apt for describing the heat transfer in small holes
apparently when small enough the boundary layer is effectively removed
the gist of it seems to be that smaller is better
the optimum solutions are integrated into the silicon on the top of the die and quite small indeed
as we have an externally applied heat exchanger the mini channels are the best possible, even with the pump pressure requirements
aquarium pumps are not the way to do this, eh
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