Quote:
Originally posted by leejsmith
The tubes are 0.5mm from the cup base or 2mm into the cups.
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Okay, this is your current biggest issue.
The tubes are WAY too close to the base of the cups.
Go back to google and do a little more reading on jet impingement...
Basically the way you have it setup now, you're probably losing around 30% of the jet's cooling potential due to its "too close" proximity to the cup base.