Not all CFD is Equal! (Going Down the CFD Rabbit Hole)

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Verus Engineering

Verus Engineering

Күн бұрын

Пікірлер
@fifty_10
@fifty_10 3 ай бұрын
Hell yeah, the engineering aspect of automotive building is top tier content. It would be great to get an audio podcast version of this content also
@VerusEngineering
@VerusEngineering 3 ай бұрын
We will keep that in mind! Thanks for following along.
@fifty_10
@fifty_10 2 ай бұрын
@VerusEngineering listening to a Verus Engineering podcast while I work is 100% ideal when me and people like me can't commit to posting youtube at work. Love the content though so I'm locked in for however you post
@David_Conant
@David_Conant 2 ай бұрын
Definitely appreciate the technical discussions.
@VerusEngineering
@VerusEngineering 2 ай бұрын
Thanks David. We will continue to bring this kind of content.
@David_Conant
@David_Conant 2 ай бұрын
@@VerusEngineering great!!!
@kylesmith583
@kylesmith583 3 ай бұрын
Loved this, these interview style informationals have been great to watch and learn from. Would love to see more interactions with partners and drivers and other aero nerds like yourselves discussing topics.
@VerusEngineering
@VerusEngineering 3 ай бұрын
We will keep that in mind!
@Alexander-nz1dz
@Alexander-nz1dz 2 ай бұрын
Stuff like this is what differentiates an engineering company from a bodykit company. Dabbled with these concepts in college motorsports, kinda hate that i can't unsee what it takes to do it right, but inspires confidence seeing companies talk the talk. (Solidworks) Streamlines look cool, but mesh quality, yaw, convergence with the tunnel, tire squirt, radiator conditions, etc. is how real functional aero packages are developed.
@VerusEngineering
@VerusEngineering 2 ай бұрын
Agreed and well said.
@trashpanda9433
@trashpanda9433 2 ай бұрын
I would definitely like another video on scan to CAD modeling. I’m doing some of it for some personal projects, but all self taught for it
@VerusEngineering
@VerusEngineering 2 ай бұрын
We will keep it in mind, but some things we just have to keep to ourselves. Trade secrets!
@900BRZ
@900BRZ 2 ай бұрын
Awesome discussion. Love all the detail about how you guys have correlated your CFD. One of the things I’m curious about is how you correlate the flow under the car assuming the wind tunnel you guys used doesn’t have a rolling floor. Seems like the behavior of the air against the ground would be super different in the wind tunnel vs on track. I’ve read some wind tunnel reports (without rolling floor) that seem to potentially underestimate the effect of diffusers as a result. Maybe something you could cover in a future video.
@VerusEngineering
@VerusEngineering 2 ай бұрын
In our simulations, we simulate rolling road and the wheels spinning with various boundary condition settings. Within our abilities, we simulate real world behaviors as closely as possible to ensure our simulations match real world conditions. Agreed, non-rolling road wind tunnels are less than ideal with estimating anything ground effects related. As such, anyone claiming or trying to extrapolate data from ground effects when the vehicle is on a non-rolling road with the wheels not spinning, results should be taken with a grain of salt.
@halfwaytobedlam3234
@halfwaytobedlam3234 2 ай бұрын
thank you for sharing, its a fascinating insight into cfd
@VerusEngineering
@VerusEngineering 2 ай бұрын
Of course! Happy to share our knowledge.
@rolandotillit2867
@rolandotillit2867 3 ай бұрын
When you start with better shapes, that are less prone to separation, or detached flow, it also helps your CFD because CFD is not fantastic at predicting unsteady flow, or turbulence transition without a lot of computer power. This is one of the benefits of having a good wind tunnel, where you can validate geometries that tend to have less separation, which in turn will give more accurate CFD results, in a virtuous feedback loop.
@VerusEngineering
@VerusEngineering 3 ай бұрын
Well said.
@SieTeppischfresser
@SieTeppischfresser 2 ай бұрын
Please show us how you scan vehicles. I love OpenFOAM, but have only used it for piping. It would be cool to see you use it for large scans.
@VerusEngineering
@VerusEngineering 2 ай бұрын
Some things we have to keep to ourselves, unfortunately. These are just small tricks of the trade we do not wish to share.
@nicosiano1174
@nicosiano1174 2 ай бұрын
Please give us more this is a 20 minute gold mine
@VerusEngineering
@VerusEngineering 2 ай бұрын
We will keep it in mind!
@grippgoat
@grippgoat 2 ай бұрын
Would love some more insight on the mounting of the UCW rear wing on the gen 2 BRZ using rivnuts. What kind of strength analysis / testing was done? What's the expected fatigue behavior after 100+ hours on track? 500+ hours? What other options were considered?
@VerusEngineering
@VerusEngineering 2 ай бұрын
We do not foresee there ever being any fatigue issues with this wing. We have had people stand on top of the wing without issue and we have a test pilot program where 8 drivers did plenty of testing for us and there was never a single issue regarding strength. This mounting solution is plenty strong but does make for a bit of a difficult install. We plan to revisit the mounting in the near future.
@brianmalvarez
@brianmalvarez 3 ай бұрын
Would love to know if you have a target lap timeline improvement or downforce number when you set out to design a package for a platform.
@VerusEngineering
@VerusEngineering 3 ай бұрын
Lap time decreases are subjective as every track is different, but we do typically have an idea of what downforces numbers we would like to achieve before starting the design process.
@JoshuaStokes
@JoshuaStokes 3 ай бұрын
Thanks for these great technical videos recently. I would love to see a breakdown of the workflow from pointcloud to solid model, do you just use software like geomagic?
@VerusEngineering
@VerusEngineering 3 ай бұрын
We will keep that in mind for future videos. However, we do not use geomagic.
@Desert_Spec
@Desert_Spec 3 ай бұрын
Do you guys think you'll ever develop the 350/370Z platform? The Z market has a big void of tasteful bolt on/functional aero like yours outside of Japan. I also enjoy these style of videos. Good to see what goes into it all.
@VerusEngineering
@VerusEngineering 3 ай бұрын
To be 100% honest, we do not have any plans for 350/370 development. We tried to get into the market back in the day, but it fell flat, so it didn't make sense for us to look into them any further.
@Desert_Spec
@Desert_Spec 3 ай бұрын
@@VerusEngineering Damn! Thanks for the honesty.
@ryderSRliu
@ryderSRliu 3 ай бұрын
If you can share, how do you handle your tire contact patch geometry in your CFD model? The contact patch and tire squirt tend to be very numerically sensitive, especially in RANS. I'm always curious how different aero groups handle this area.
@VerusEngineering
@VerusEngineering 3 ай бұрын
We have a specific amount of "flat spot" for the tire that we have used for years. This allows us to simulate the contact patch of a tire in real life, in CFD.
@ryderSRliu
@ryderSRliu 3 ай бұрын
@@VerusEngineering Makes sense. I'm assuming you must extrude it a little bit so that your mesh skewness in the gap between the tire and the ground plane isn't bad?
@VerusEngineering
@VerusEngineering 3 ай бұрын
Unfortunately, we do not share everything that we do. Just trying to give everyone a glimpse of what goes on behind the scenes.
@ryderSRliu
@ryderSRliu 3 ай бұрын
@@VerusEngineering perfectly fair. Thanks for answering my question.
@SOURMlLK
@SOURMlLK Ай бұрын
Its really not that complex. its just 3d mesh (A 3D model), true to life scale settings, run a CFD sim (fluid sim).
@VerusEngineering
@VerusEngineering Ай бұрын
We wish it was that easy.
@dalmighty5568
@dalmighty5568 3 ай бұрын
Can't really go wrong with a company that has data to go along with their products.
@VerusEngineering
@VerusEngineering 3 ай бұрын
🙌
@rolandotillit2867
@rolandotillit2867 3 ай бұрын
When doing yaw CFD, the half a car approach isn't bad, because the windward side of the car during yaw is the one most sensitive to disturbance, both from the tire wake, and vortex breakdown and the resulting recirculation that causes. The leeward side has everything working for it from a downforce perspective. Car is lower to the ground due to roll, the wake is moving away from the underfloor. So improving the windward side tends to yield better results in yaw, especially in a competitive environment, plus it saves computation since you're only doing half the car.
@VerusEngineering
@VerusEngineering 3 ай бұрын
Well said. We certainly appreciate the response.
@jkrzeminski
@jkrzeminski 2 ай бұрын
Why do you think the leeward side of the car is lower than the windward side during yaw?
@rolandotillit2867
@rolandotillit2867 2 ай бұрын
@jkrzeminski because when you turn the car, it rolls, the side facing the corner, the windward side, lifts up, while the leeward side, drops down.
@apollonitro4802
@apollonitro4802 2 ай бұрын
Subbed 💯
@VerusEngineering
@VerusEngineering 2 ай бұрын
😁
@gwagenadventure727
@gwagenadventure727 2 ай бұрын
Selling the hateorade on Solidworks but didn’t mention what you are using for modeling or cfd. If you’re going to talk down on one platform why not share what you think is better?
@VerusEngineering
@VerusEngineering 2 ай бұрын
I believe we went over both of these in the video. OpenFOAM for CFD and NX for modeling.
@jakeparker8254
@jakeparker8254 3 ай бұрын
Would love to know what you guys are upto with the latest generation of ai tools.. the rate of learning is unreal.. ive called custom gpt adrian newey ahahah think you guys will appreciate that 😂
@VerusEngineering
@VerusEngineering 2 ай бұрын
We don't use AI tools very much at all to be honest.
@garagecedric
@garagecedric Ай бұрын
​@@VerusEngineering the reality in engineering, less buzzwords and more work 😅 would be nice if ai could do anything useful, havent seen much if it yet, at least not in my engineering work.
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