Thanks Cathar, and again, excellent work!
Did you calculate any improvement in increasing the fin height?
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I recoded the sim. Turns out that a 1.5:1 ratio of copper:water width is ever so slightly better, so using say 0.9mm wide walls with 0.6mm wide water channels would yield slightly better results, and would also increase the essential copper density right above the CPU core. However, just try getting something like that machined! (EDM would be the only option) I went with a 1:1 ratio and 1mm anyways because that was the smallest that the machine shop could do cheaply, and I was also concerned about flow rates. Having said that though, a 1:1 ratio still performs very well on the simulator not being much different (0.15C) to the 0.9:0.6 option.
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