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Originally Posted by Incoherent
It's a compromise. Agree to a point but with the added surface area comes a lower water velocity and hence lower turbulence for a given pump. Add the thermal gradient of copper and it can easily end up way inferior.
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Not necessarily, if you decrease 'headroom' (pins height) you will create very much more velocity due to decreased cross-sectinal area (see Bernoulli Law again) even though surface area increased - again quite nice trick employed here - mre surface area but smaller stream cross sectional area. Pins in hit&miss pattern would create very much yummy turbulence
I suspect (to calculate this .... forget it) that the pressure drop of such a block would be even more than the smallest nozzle size Cathars produce but then again with taller pins one could have an universal block like latest swiffy offering but providing much better performance.
Thermal gradient SPREAD would be superior with regards to max attainable overclock and flux spikes dissipation capacity.
The basic rule for all water block designs is the bigger thermal exchange area the better and the higher energy density dissipation per blocks area unit the better. Inertia of a block is an added bonus.
Anyone knows how much does a 60mm diameter copper ball cost?
and how much would it cost to solder all this pins to its surface (BillA? curious how would it cost to produce in USA)?