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Not who you were referring to, but I have a PhD in mechanical engineering focused on numeric simulation (not MIT or CalTech, but UCLA isn't the worst R1 institution), and have some application experience in thermal-fluids; primarily heavy equipment/high-power electronics cooling in this specific field. What [USER=10603]@lehman[/USER] and [USER=14545]@srekal34[/USER] are getting at actually makes a lot of sense.There is quite a bit of subtlety in optimization when it comes convective cooling that extends to CPU block design. Everything from the jet plate fin height/pitch, to the number of bends, to the types/diameters of fittings will all impact the optimal pressure/flow inputs to find the peak in noise normalized performance. The real complexity is that the majority of these factors don't scale linearly, and many have parasitic/convoluted effects on the other terms. Thus, testing in the most 1-to-1 scenario with as many extraneous parameters controlled or normalized as possible is really the only way to provide sound results.However, to [USER=4977]@gwertheim[/USER] 's point, cost and time-investment are also considerations that shouldn't be discounted. It might very well not be worth it for [USER=10]@Wahaha360[/USER] to completely optimize the block in the first pass, as long as it's competitive advantage is maintained in its small size and proves to be "good-enough" performance wise to warrant considering over AIOs, then he can always make further improvements in Rev2 once the initial investment is recuperated.
Not who you were referring to, but I have a PhD in mechanical engineering focused on numeric simulation (not MIT or CalTech, but UCLA isn't the worst R1 institution), and have some application experience in thermal-fluids; primarily heavy equipment/high-power electronics cooling in this specific field. What [USER=10603]@lehman[/USER] and [USER=14545]@srekal34[/USER] are getting at actually makes a lot of sense.
There is quite a bit of subtlety in optimization when it comes convective cooling that extends to CPU block design. Everything from the jet plate fin height/pitch, to the number of bends, to the types/diameters of fittings will all impact the optimal pressure/flow inputs to find the peak in noise normalized performance. The real complexity is that the majority of these factors don't scale linearly, and many have parasitic/convoluted effects on the other terms. Thus, testing in the most 1-to-1 scenario with as many extraneous parameters controlled or normalized as possible is really the only way to provide sound results.
However, to [USER=4977]@gwertheim[/USER] 's point, cost and time-investment are also considerations that shouldn't be discounted. It might very well not be worth it for [USER=10]@Wahaha360[/USER] to completely optimize the block in the first pass, as long as it's competitive advantage is maintained in its small size and proves to be "good-enough" performance wise to warrant considering over AIOs, then he can always make further improvements in Rev2 once the initial investment is recuperated.
