Kingske

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Hi @Kingske
We didn't run a back-to-back simulation with & without air curtain, so I don't have info on the real difference. But I would guess it's in the order of magnitude of 1%.

I've attached a screenshot below where you can at least see an indication that the flow through the air curtain (blue arrow) is reducing the wake/turbulent area around the lower part of the tire.

But we have to be careful with conclusions, as we don't have a car model with blocked curtains and this lower area might see reduced wake because of other reasons.


1622724324897.png

Nevertheless, we do see proper airflow going through the air curtains, so if it's blocked, for sure there is at least some impact!

1622725556124.png
@Wouter Remmerie , thank you.
 

BeTay22

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I've attached a screenshot below where you can at least see an indication that the flow through the air curtain (blue arrow) is reducing the wake/turbulent area around the lower part of the tire.
Actually, the motorized charge port only blocks the rear air vent, the one between the front wheel and the door. So I guess the impact is probably even less?
 
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Actually, the motorized charge port only blocks the rear air vent, the one between the front wheel and the door. So I guess the impact is probably even less?
That indeed makes things different:
I'm guessing the "rear" air vent is mainly there to evacuate some high pressure air from the wheel well and perhaps create a better attached flow on the side flank. I'm guessing (again, haven't done a sim with & without that) the order of magnitude of effect would be similar (1% or so). I think the car we tested had that vent closed, but I'm not sure (we'll discuss tufts in that area in the next video!)
 

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