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The first post on page 8 of this thread gives this info for a F4 mechanical pump

Check out page 5 of this thread for a picture of the Brunel car with the radiator mounted out of the airstream.

Maverik, or anyone else,

Have you done any modelling to determine the effects of the chassis, wheels spining/turning and the wishbones on the airflow reaching the radiator?

Fair point



Fin density and pressure drop are two of the many variables which play an important role in determining system efficiency.

With regards to the original question about designing...

If you mount the fan directly onto the back of the radiator, it is only pulling air through the core area which is exposed to the fan blades, which when you subract the area of the motor, isn't much....

This has been discussed previously on this thread, but the most important thing is to make sure that all of the air that passes through the shroud is forced to travel through the radiator core. This...

Yeah sorry Scott, I meant it the way Mike explained it...so its still one unit but with effectively 2 skinny cores sitting flush against eachother.

Anyone have any opinions or experiences with double core radiators? any known pros and cons?

Any idea on the performance difference between a 40mm thick single core or 2 rows of 20mm thick tubes?...

Thanks guys, I think i'm starting to get my head around it now.

On another note, I remember earlier in this thread some people asking for the flow rates of mechanical pumps. I found a paper which...

BeaverGuy,

Firstly, is Uo the airside conductance or is it the total conductance (or neither)? and even after reading Kays and London (and obviously not understanding it very well!) I don't get...