Verus' Shop BRZ - Development Thread

[ichitaka05]

Option B

[Ultramaroon]

Originally Posted by VerusEric

I apologize, is this better?

Paul compiled data for the wing! This will be considered our low drag, high-efficiency wing. We have a maximum efficiency, also known as L/D, of 11.5. This was made possible by developing the wing directly in CFD using optimization studies in ANSYS.

Oh, stahp.

Great stuff here!

Option B purely for aesthetics but I seriously doubt anyone would care either way. You have a strong rep for function over form.

[Spuds]

Originally Posted by VerusEric

Paul compiled data for the wing! This will be considered our low drag, high-efficiency wing. We have a maximum efficiency, also known as L/D, of 11.5. This was made possible by developing the wing directly in CFD using optimization studies in ANSYS.

On option a vs b, I would mock up some cardboard and put it on a full car to get a better idea. Aesthetically, you would want it to match the character of the car, rather than just looking at one piece of it.

I'm guessing those graphs are from CFD as well? Or is that actually wind tunnel data? Was the car body included in that, or just wing by itself?

Any idea what's going on at 110-120? Looks a bit like separation, but I would expect the speed of that to decrease as AOA increases.

Also, what's the data look like around highway speeds? From eyeballing it, looks like drag bottoms out at 5lb?

[arthur93]

Will there be a difference in the performance of option A to B? as @Ultramaroon mentioned, you guys have a history of going for function over form. I think that differentiates you from the rest of the industry. If I had to choose, I am leaning slightly to option B but I think the majority of your customer base wants your items due to their performance, not the look. My 2 cents

[pgranberg11]

I'm all for whatever gives the most performance. The wing is going to look sick regardless.

[acollite]

not a big difference visually but i think option B looks a little better

[VerusEric]

Originally Posted by acollite

not a big difference visually but i think option B looks a little better

Originally Posted by pgranberg11

I'm all for whatever gives the most performance. The wing is going to look sick regardless.

Originally Posted by arthur93

Will there be a difference in the performance of option A to B? as @Ultramaroon mentioned, you guys have a history of going for function over form. I think that differentiates you from the rest of the industry. If I had to choose, I am leaning slightly to option B but I think the majority of your customer base wants your items due to their performance, not the look. My 2 cents

Originally Posted by Ultramaroon

Oh, stahp.

Great stuff here!

Option B purely for aesthetics but I seriously doubt anyone would care either way. You have a strong rep for function over form.

Originally Posted by ichitaka05

Option B

I appreciate all the opinions! We're printing out the uprights right now to help us visualize this again. I already printed it out but because I printed one in purple and another in black, some guys feel it biased the mounts. I have more black on order and will print it this coming week.

The mounts do not change function, weight remains roughly the same, and with FEA we can make both styles strong enough to handle the load.

Originally Posted by Spuds

On option a vs b, I would mock up some cardboard and put it on a full car to get a better idea. Aesthetically, you would want it to match the character of the car, rather than just looking at one piece of it.

I'm guessing those graphs are from CFD as well? Or is that actually wind tunnel data? Was the car body included in that, or just wing by itself?

Any idea what's going on at 110-120? Looks a bit like separation, but I would expect the speed of that to decrease as AOA increases.

Also, what's the data look like around highway speeds? From eyeballing it, looks like drag bottoms out at 5lb?

Those graphs are CFD, which is a virtual wind tunnel. These specific data points are of the wing only, not on the car although we have all that data as well.

Are you referring to the downforce or the efficiency? It is not separation in either case.

Drag would reduce further at highway speeds, it does not bottom out as it is dependent on airspeed. The slower you go, the less drag and downforce is produced.

Thanks,
Eric

[VerusEric]

We decided against printing out the upright in black, so here is the purple beauty in all her glory. We have finalized a shape for the upright we thoroughly like as do others that care about the visuals; we're getting those cut shortly out of 6061.





0 degrees AOA





13 degrees AOA

The wing was developed in CFD on and off the car to make sure we hit maximum efficiency. That is how we were able to have a wing that will produce 11.5 lbs of downforce for every 1 lb of drag; which is quite impressive for a wing!

The picture below is part of that CFD. This is an on car wing analysis that was done for optimization of the height of the wing from the trunk lid. The height is critical to verify clean air is interacting with the wing. Too low and we do not achieve proper airflow under the wing and lose efficiency. Too high and we are getting unnecessary drag, reducing efficiency, and a larger moment which will change the aero balance of the car.



Thanks,
Eric

[arthur93]

Don't know if this is possible, but are you guys able to provide data when all of your products are combined on the one vehicle? Pretty sure you posted some numbers with the rear diffuser, front splitter and end plates but would be interested to see what happens when the canards and wing is added. Really interested to see what the aero balance would look like.

[laextreme5]

Wing looks great. Do you have any angles from the rear showing the width? Also is it feasible to mount it further back on the trunk if some sort of reinforcement was made to not distort the trunk?

[ichitaka05]

Looking good!

[Brayden_23]

Just an idea: what if instead of those 2 silver bolts on the bottom of the upright there was a flange around the bottom to make it sit flush? Could give an overall cleaner appearance IMO.

Any chance we can see a side view of the CFD analysis?

[VerusEric]

Originally Posted by arthur93

Don't know if this is possible, but are you guys able to provide data when all of your products are combined on the one vehicle? Pretty sure you posted some numbers with the rear diffuser, front splitter and end plates but would be interested to see what happens when the canards and wing is added. Really interested to see what the aero balance would look like.

Yes, we will be making all the data available in the coming months.

Originally Posted by laextreme5

Wing looks great. Do you have any angles from the rear showing the width? Also is it feasible to mount it further back on the trunk if some sort of reinforcement was made to not distort the trunk?

See below. It could be I guess, but that type of mounting and reinforcement would be up to you.

With the aluminum uprights we prototyped (months ago), we tested some weight on the wing on the car. This is 160 pounds, which isn't a ton but enough to test how the uprights, mounts, and wing handle that weight at this point. So far so good.



Thanks,
Eric

[grichardt]

I have mixed feelings on the way this looks but I’m intrigued to say the least. I’m in southern Indiana... I need to come check you guys out! Love the vents and will be getting the diffuser and splitter next.