Quote:
Originally Posted by NeilBlanchard
Hello,
I think it would help if you put flush covers on the openings that are already blocked. Recesses are bad...
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I'm not sure it's always that simple. An egg crate grill, at a large angle to the incoming air, ought to be about the same drag whether it's blocked on the front or rear surface. A stagnation bubble will form in front of it and the drag would be more pressure related instead of friction.