Aero analysis for F1 2022 based on CFD result

Here are our CFD links and discussions about aerodynamics, suspension, driver safety and tyres. Please stick to F1 on this forum.
Fluido
Fluido
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Re: Aero analysis for F1 2022 based on CFD result

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Latios wrote:
Mon Mar 28, 2022 7:04 pm

Thank you very much, it's soooo encouraging !
Doing analyze is very interesting and good way to kill time, feeling closer to the amazing sport.
Is it more work doing geometry or CFD?
Can you post specifications of your PC/ work station that you used for this?

Latios
Latios
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Re: Aero analysis for F1 2022 based on CFD result

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Fluido wrote:
Wed Mar 30, 2022 9:43 pm
Latios wrote:
Mon Mar 28, 2022 7:04 pm

Thank you very much, it's soooo encouraging !
Doing analyze is very interesting and good way to kill time, feeling closer to the amazing sport.
Is it more work doing geometry or CFD?
Can you post specifications of your PC/ work station that you used for this?
CAD causes more, since it includes: read regulaction, create regulation's control volume/surface/limits, then draw the geo.
PC:
for CAD, just normal PC, 9700K+2080S+64GB RAM.
for CFD: an year-2016 old work station, 32 cores (each's speed is much lower than 9700K) and 64GB RAM

Fluido
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Re: Aero analysis for F1 2022 based on CFD result

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Latios wrote:
Thu Mar 31, 2022 6:32 am

for CFD: an year-2016 old work station, 32 cores (each's speed is much lower than 9700K) and 64GB RAM
Which CPU is that ,i7-9700K has 8 cores?

Latios
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Joined: Tue Jan 12, 2021 9:58 am

Re: Aero analysis for F1 2022 based on CFD result

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Fluido wrote:
Thu Mar 31, 2022 2:21 pm
Latios wrote:
Thu Mar 31, 2022 6:32 am

for CFD: an year-2016 old work station, 32 cores (each's speed is much lower than 9700K) and 64GB RAM
Which CPU is that ,i7-9700K has 8 cores?
The PC for CAD is using i7-9700K, has 8 cores.
The PC for CFD is using Xeon E5-2667 v4, 3.2GHz

Fluido
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Re: Aero analysis for F1 2022 based on CFD result

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Latios wrote:
Thu Mar 31, 2022 6:18 pm



The PC for CAD is using i7-9700K, has 8 cores.
The PC for CFD is using Xeon E5-2667 v4, 3.2GHz
2x xeon gold 6134 (8cores, base 3.2Ghz, turbo 3.7Ghz,cache 24,75MB)
or
2x xeon gold 6142 (16cores ,base 2.6Ghz, turbo 3.7GHz, 22MB cache)

Which one is better for CFD?

Latios
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Joined: Tue Jan 12, 2021 9:58 am

Re: Aero analysis for F1 2022 based on CFD result

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Fluido wrote:
Fri Apr 01, 2022 3:01 pm
Latios wrote:
Thu Mar 31, 2022 6:18 pm



The PC for CAD is using i7-9700K, has 8 cores.
The PC for CFD is using Xeon E5-2667 v4, 3.2GHz
2x xeon gold 6134 (8cores, base 3.2Ghz, turbo 3.7Ghz,cache 24,75MB)
or
2x xeon gold 6142 (16cores ,base 2.6Ghz, turbo 3.7GHz, 22MB cache)

Which one is better for CFD?
Not sure... You can use a simple CFD task to test.
Memory is also critical, it must be enough for your mesh.

Fluido
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Joined: Fri Mar 25, 2022 4:17 pm

Re: Aero analysis for F1 2022 based on CFD result

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Latios wrote:
Fri Apr 01, 2022 4:50 pm
is better for CFD?


Not sure... You can use a simple CFD task to test.
You mean which one solve first?

Latios
Latios
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Re: Aero analysis for F1 2022 based on CFD result

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Fluido wrote:
Fri Apr 01, 2022 4:55 pm
Latios wrote:
Fri Apr 01, 2022 4:50 pm
is better for CFD?


Not sure... You can use a simple CFD task to test.
You mean which one solve first?
Yes

Fluido
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Re: Aero analysis for F1 2022 based on CFD result

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Latios wrote:
Fri Apr 01, 2022 5:34 pm
Fluido wrote:
Fri Apr 01, 2022 4:55 pm
Latios wrote:
Fri Apr 01, 2022 4:50 pm
is better for CFD?


Not sure... You can use a simple CFD task to test.
You mean which one solve first?
Yes
GHz vs cores

Latios
Latios
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Joined: Tue Jan 12, 2021 9:58 am

Re: Aero analysis for F1 2022 based on CFD result

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Fluido wrote:
Fri Apr 01, 2022 6:22 pm
Latios wrote:
Fri Apr 01, 2022 5:34 pm
Fluido wrote:
Fri Apr 01, 2022 4:55 pm


You mean which one solve first?
Yes
GHz vs cores
I mean you need to test.
With cores increases, the calculation speed is not increased linearly.

Fluido
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Re: Aero analysis for F1 2022 based on CFD result

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Latios wrote:
Fri Apr 01, 2022 7:54 pm
Fluido wrote:
Fri Apr 01, 2022 6:22 pm
Latios wrote:
Fri Apr 01, 2022 5:34 pm


Yes
GHz vs cores
I mean you need to test.
With cores increases, the calculation speed is not increased linearly.
when turbo starts?
If both has same turbo ghz doesnt that mean this with more cores is faster?

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vorticism
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Joined: Tue Mar 01, 2022 7:20 pm

Re: Aero analysis for F1 2022 based on CFD result

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Latios wrote:
Fri Apr 01, 2022 7:54 pm
...
What CAD program did you use for the model? Parametric, polygonal?

Might be fun to see:

-Model run in reverse flow, maybe 200kph, to see how much lifting capacity it has if spun 180*
-Various positive rake angles to see what angle of attack would be needed to make the car go airborne during an impact
-duplicate the model and test following distances (drafting)
-Mercedes sidepods effects
-Mclaren bib/t-tray effects (vs. what looks like RB18 version in your existing model)
-put a non-flat road surface to simulate riding the curbs (gap from floor to road increases), Mick Schumacher crash comes to mind

-omit the front wheel fairings/wings (do they actually do much?)
-Red Bull stacked beam wing effects
-Test a Monaco spec with the biggest wings you can fit in the legality volumes
-Test a large version of the Ferrari sidepods (essentially make the largest sidepods that can fit in the legality volumes)

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jjn9128
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Re: Aero analysis for F1 2022 based on CFD result

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vorticism wrote:
Sat Apr 02, 2022 12:50 am
What CAD program did you use for the model? Parametric, polygonal?

Might be fun to see:

-Model run in reverse flow, maybe 200kph, to see how much lifting capacity it has if spun 180*
-Various positive rake angles to see what angle of attack would be needed to make the car go airborne during an impact

-duplicate the model and test following distances (drafting)
-Mercedes sidepods effects
-Mclaren bib/t-tray effects (vs. what looks like RB18 version in your existing model)
-put a non-flat road surface to simulate riding the curbs (gap from floor to road increases), Mick Schumacher crash comes to mind

-omit the front wheel fairings/wings (do they actually do much?)
-Red Bull stacked beam wing effects
-Test a Monaco spec with the biggest wings you can fit in the legality volumes
-Test a large version of the Ferrari sidepods (essentially make the largest sidepods that can fit in the legality volumes)
Definitely these 3 would definitely be interesting. A lot of "copy team A" you can see trends but not really their flowfield - plus Vanja already did some of that - to me the big picture things are more interesting.
#aerogandalf
"There is one big friend. It is downforce. And once you have this it’s a big mate and it’s helping a lot." Robert Kubica

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Stu
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Location: Norfolk, UK

Re: Aero analysis for F1 2022 based on CFD result

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jjn9128 wrote:
Sat Apr 02, 2022 7:32 am
vorticism wrote:
Sat Apr 02, 2022 12:50 am
What CAD program did you use for the model? Parametric, polygonal?

Might be fun to see:

-Model run in reverse flow, maybe 200kph, to see how much lifting capacity it has if spun 180*
-Various positive rake angles to see what angle of attack would be needed to make the car go airborne during an impact

-duplicate the model and test following distances (drafting)
-Mercedes sidepods effects
-Mclaren bib/t-tray effects (vs. what looks like RB18 version in your existing model)
-put a non-flat road surface to simulate riding the curbs (gap from floor to road increases), Mick Schumacher crash comes to mind

-omit the front wheel fairings/wings (do they actually do much?)
-Red Bull stacked beam wing effects
-Test a Monaco spec with the biggest wings you can fit in the legality volumes
-Test a large version of the Ferrari sidepods (essentially make the largest sidepods that can fit in the legality volumes)
Definitely these 3 would definitely be interesting. A lot of "copy team A" you can see trends but not really their flowfield - plus Vanja already did some of that - to me the big picture things are more interesting.
By “big picture” are you talking about how the aero works as a whole, how different parts interact or where the bigger gains are coming from?
Perspective - Understanding that sometimes the truths we cling to depend greatly on our own point of view.

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jjn9128
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Joined: Tue May 02, 2017 10:53 pm

Re: Aero analysis for F1 2022 based on CFD result

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Stu wrote:
Sat Apr 02, 2022 8:32 am
By “big picture” are you talking about how the aero works as a whole, how different parts interact or where the bigger gains are coming from?
As opposed to the minutiae of design variations between teams. Because that's so dependent on getting the whole system working.
#aerogandalf
"There is one big friend. It is downforce. And once you have this it’s a big mate and it’s helping a lot." Robert Kubica