If I may. The upper wheel wake does produce downforce, and your design enhances the upper wheel wake at the front, while diminishing the lower. This is because the upper wheel wake produces a low pressure pocket(since it rotates against the flow) which creates a transverse vortex that bleeds into the rear upper quadrant of the wheel. If that transverse vortex is strong enough, it overpowers the lift producing vortices, and then generates downforce. The side mirrors interacts with this upper tire wake, and merges with the rear wing. The rear upper wheel vortex of the rear axle instead merges with the diffuser upwash, which forces the wake to encroach on the diffuser volume. You would need to create more outwash of the lower rear tire wake to regain the floor downforce.
didn't you previously find out that making it more of a separate wing after the roof as opposed to more of a spoiler improved the interaction with the body and the effectiveness of the floor?
What software do you use for editing the models? I see that you work a lot with weird surfaces that most solid body cad systems would be a pain to work with.
Will you try do work on the front undertray next? It loooks very simple, so theres most likely alot to be gained there, would be interesting to see how much though.
If you want the floor to work better add outwashing strakes near the wheels. It does 2 things, push out the wheel wake, while entraining air to flow down the center of the floor, kind of like a NACA duct. Since the highest velocity flow exits out of the center of the floor due to the tire wake, may as well energize the flow there as much as possible.
Why not open the top part of the front fender behind the kick up as well? I also wonder if it would be better to just have the cutout behind the tire be just one curve, so either making it fully out washing with no smooth transition into the body (almost a bit like F1 barge boards) or one thats a smooth transition from the body but isnt smooth at the inner wheel well side. Presumably doing this would let you have a bigger radius for both options and maybe help give the air more area to flow through making it less chaotic.
If I may. The upper wheel wake does produce downforce, and your design enhances the upper wheel wake at the front, while diminishing the lower. This is because the upper wheel wake produces a low pressure pocket(since it rotates against the flow) which creates a transverse vortex that bleeds into the rear upper quadrant of the wheel. If that transverse vortex is strong enough, it overpowers the lift producing vortices, and then generates downforce. The side mirrors interacts with this upper tire wake, and merges with the rear wing. The rear upper wheel vortex of the rear axle instead merges with the diffuser upwash, which forces the wake to encroach on the diffuser volume. You would need to create more outwash of the lower rear tire wake to regain the floor downforce.
didn't you previously find out that making it more of a separate wing after the roof as opposed to more of a spoiler improved the interaction with the body and the effectiveness of the floor?
Wonderfully explained and showed as always
👍👍👌👌
Nice video m8, what program are you using to run the simulations?
Thanks!
What software do you use for editing the models? I see that you work a lot with weird surfaces that most solid body cad systems would be a pain to work with.
Will you try do work on the front undertray next? It loooks very simple, so theres most likely alot to be gained there, would be interesting to see how much though.
If you want the floor to work better add outwashing strakes near the wheels. It does 2 things, push out the wheel wake, while entraining air to flow down the center of the floor, kind of like a NACA duct. Since the highest velocity flow exits out of the center of the floor due to the tire wake, may as well energize the flow there as much as possible.
Why not open the top part of the front fender behind the kick up as well? I also wonder if it would be better to just have the cutout behind the tire be just one curve, so either making it fully out washing with no smooth transition into the body (almost a bit like F1 barge boards) or one thats a smooth transition from the body but isnt smooth at the inner wheel well side. Presumably doing this would let you have a bigger radius for both options and maybe help give the air more area to flow through making it less chaotic.
going to slap on a fat wang on my hatch so these videos are super helpful in deciding which monstrosity to place on my econobox 🤣
I'm studying to copy the roof of the Supervam 4.2
Can you simulate how the roof of the Supervam would perform on this car?
Nice logo.