Quote:
Originally posted by gmat
Besides, bb2k started this thread to talk about *pressure* issues in rads. Do we want low or high pressure ?
From my (modest) knowledge:
- we want pressure to work for us, not against us.
- there *are* pressure differentials throughout our water lines, and not negligible, even with our tiny pumps.
- the very few serious tests i've seen tend to prove that low pressure in rads (as opposed as high pressure in WB) is a good thing.
- i've yet to talk to a fluid dynamics expert (i know a few, ill see them this WE) about this, because this problem is clearly over my current knowledge (heck i'm a computer scientist, FD courses are a few years back...)
- this problem does *not* involve flow or temperature. We're talking about pressure here.
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Gmat, what are those serious tests? I don't see how pressure (and *not* flow) can be important. Suppose you attach an extra pump to the bleed line, and this pump is trying to pump air in or out changing the pressure inside your system. Do you think this can have an effect on cooling? Why?