Thread: Rear diffuser?
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Old 07-11-2022, 10:03 PM   #40 (permalink)
Phase
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Black Bullet - '19 Hyundai Ioniq Hybrid Blue
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Quote:
Originally Posted by aerohead View Post
I went to the Munich, Germany site.
I reverse-engineered an estimated frontal area.
I reverse-engineered the VERSUS ENGINEERING test velocity.
Using Munich's drag coefficients for the wind tunnel tested-model, I reverse-engineered for VERSUS's velocity.
With their own numbers, I calculated that the 'smooth-bellied' notchback with diffuser would have 39.1 fewer counts than the 'dirty-bellied' notchback with diffuser, making 13.82% lower drag.
With only the smooth belly and diffuser, the IONIQ might hit it's target of Cd 0.20.
Why’s the Ioniq ev got the same or higher CD then if that has a smooth flat under body and a mini rear diffuser? That’s what I don’t get

I’m pretty worried about cooling when trying to cover the underbody mufflers and exhaust pipes
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