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Old 01-19-2018, 10:32 PM   #36
gtengr
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Quote:
Originally Posted by VerusEric View Post
Going back to your case, I have attached the same picture with some arrows to point out areas.



Red Arrow: Best for evacuation, lowest pressure
Orange Arrow: Good for evacuation, low pressure
Yellow Arrow: Worst place for evacuation on the entire hood. This location has the highest pressure and would result in the least productive evacuation. Likely air would actually make its way *into* the engine bay.

People reduce complexity on CFD models to aid in solving. There are industry standards (followed by OE's, privateers, and race teams) that are accepted because they do not result in incorrect results.

Hope that helps,
Eric
I agree, but my aim wasn't to investigate this as the best option. I was looking at is as a possible way to get "some" venting without cutting the stock hood or dealing with aftermarket hoods. Also, the theoretical vent location is not on the surface of the hood, it would be on flat vertical face under the rear of the hood, and recessed about 4" toward the front of the car as measured from the vertical plane at the back edge of the hood.

I don't mind if I'm wrong. I just don't think pointing to the pressure distribution on the top surface of the hood tells the full story, or that the underhood pressure isn't a factor.

Last edited by gtengr; 01-19-2018 at 10:48 PM.
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