Quote:
Originally posted by rocketmanx
Cathar, I was thinking about how you said that your cup:jet ratio was such that the "rebounded" water would hit the wall just after rebound. For some reason I got to thinking about parabolas and hyperbolas and focusing the rebounded water to a certain area to acheive added cooling after rebound. Haven't gone any further with that thought because I also wondered, do you know if the rebounded water is rebounding straight back out of the cup or could the rebounded water also be going straight back into the jet and slowing it down? Obviously your block works great and you've spent much time designing it but I haven't seen anyone mention where the exiting water is going exactly. I hope you see where I'm going with this 
I was just wondering if exiting the rebounded water to somewhere else besides back out the cup might help the impingement effect some.
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Part of the rebounding is useful in that it creates extra turbulence as it shears against the force of the incoming jet. Remeber what I was saying above about how having some jet shear is actually very useful, and one can see improved performance as a result, and this is true up to a point of when the jet loses too much power for the extra shear turbulence to compensate for.