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Unread 03-29-2006, 05:54 PM   #9
XyBeRWaReZ
Cooling Neophyte
 
Join Date: Mar 2006
Location: In the MIddle of Nowhere!
Posts: 68
Default Re: Water Flow Characteristics

Quote:
Originally Posted by bobo5195
you can do abit but trust me its not simple.

Best thing to do is a thought experiment. Imagine how the flow goes in your head, avoid sharp edges and expansions/ contractions. More surface area is a good thing, more velocity near a surface is a good thing. From that you get tightly spaced fins. you start thinking the fins should be very thin, but wait heat can't get to the top then. So the fins have to be a good size etc etc.

If there was a magic bullet that was easy for these things someone would of tried it a long long time ago.
Very true. But I would appreciate it if I could get some tips on water flow, from what everyone else knows and have experimented with.
As I undertand it, when desigining a waterblock you want water to go through the block and carry as much heat off as possible. But the only thing is tying to figure how slow the water has to go through in order to pick up as much heat along the way.
That's where I guess designing fins and what not inside of the blocks. With those fins, it should slow down the water enough to pickup the head but be able to flow easily enough out afterwards.
Actually wouldn't a design of fin that's thicker in the middle and is sharp at both ends work pretty well? Water would enter pretty easily at the beginning because of the sharp edge and then move along to the middle where hopefully a lot of the heat has passed through from the CPU, and then exiting the back end of the fin where it's thin again.
Please let me know what you guys think of that? It seems pretty logical, but I'm wondering if water would move too quickly through it and not pick up enough heat, causing it to be somewhat inefficient.
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