I'm with jaydee116 on this one. I'm not sure what he's getting at exactly. I understand everything he's saying, but where he's going with it....?
I don't think equations are particularly useful for anything other than theoretical exercises. So you take the thermal properties of air and you can figure out how much heat you could potentially dissipate in a perfect environment at a given air temperature and given air flow rate. It's great in theory, but you cannot calculate real life temperatures without knowing additional parameters.
For instance, the actual air volume being pushed through the radiator, which will vary based upon the design of the radiator and static pressure of the fan, not just the volume it's rated for in free air. You won't know any of this without extensive testing in a controlled environment. Then you have to consider the thermal dissipation effeciency of the radiator, which again you won't know until you've tested for it. But then all of this was done in a controlled environment, so how accurate is it going to be in the real world? All of this testing will only allow you to figure out your maximum potential in a ideal setting. You're better off just estimating and trying things out because each system varies too much.
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