Ok Bill,
I reread that thread much more thoroughly and I realize now why you've been frustrated with me. (At least to a much greater extent than I did before.) A lot more of the stuff I've been hashing over was discussed there than I had realized. I'll go stand in the corner with a dunce cap on as soon as I'm done writing this.
My main interest in this has been 'useful turbulence' vs 'useless turbulence'. The heat generated by flow through the waterblock was a secondary or tertiary concern for me. Because that thread started out focused on the heat generation, my eyes glazed over and I didn't pay attention.
Quoting Tecumseh:
Quote:
Look Specifically at the curves for the Cooltech WB75 and
the LiquidCC Surge. Notice how the curves cross at 4 lpm.
Now look at the Power Dissipation vs Flow curves above.
These two blocks have almost identical head-loss curves
and so dissipate internally the same amount of power over
the entire flow range.
What we are seeing is the effect of turbulence kicking in at
about 4 lpm. At flows below 4 lpm the LiquidCC Surge has a
lower C/W, but at flows greater than 4 lpm the Cooltech WB75
becomes a lot better than the Surge.
What this shows is that with identical head-loss (power dissipation),
the power is "partitioned" more for useful
turbulence in the WB75 at greater than 4 lpm. The WB75
is a spiral design. The Surge is a 3-fold labyrinth.
There you go. Blocks with identical head-loss and flow demonstrating
the onset of "useful" turbulence.
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This was exactly what I was interested in, and I missed it.
Bill, I don't think I have anywhere near the 'intuitive feel' for what's going on with the flow in blocks that you do. I'm starting to see that in a practical sense:
useful turbulence vs wasteful turbulence =
useful power consumption vs wasteful power consumption =
useful pressure drop vs wasteful pressure drop
However, a lot of things that are clearly obvious to you, definitely aren't to me. Thanks for bearing with me.
Now where did I leave my dunce cap...