Quote:
Originally Posted by freebeard
I got hung up on 'edterior'. Theory would say 25-250MPH, but there may be some effect from the interference drag through the engine compartment.
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For their 1987, Cd 0.186, VESTA-2, Renault achieved a cooling system of Cd 0.004 / CdA 0.007. 2.3% of overall drag.
There only concern was the Delta-P across the heat exchanger matrix, and the radiator was sized accordingly.
As heat flux varied up to top-speed, air velocity would march in step, to carry off the Btus.
As with Cd, the cooling system Cd is also fixed, once critical Rn is achieved.