CFD - Computational Fluid Dynamics, Motorsport, Formula 1

Here are our CFD links and discussions about aerodynamics, suspension, driver safety and tyres. Please stick to F1 on this forum.

Post Mon Mar 28, 2005 9:02 am

Fluent is supposedly the leader in F1 CFD. You'll need some modeler tho to build the 3D models, like Solidworks (my friends say it's really easy to use), Unigraphix (according to an old professor, who takes classes by Oakley sunglasses, is the best one for assembly), or Pro/E (Ferrari). Of course, you need a license to operate them, and if u do get one, plan to spend thousands on software and some more thousands on a computer to build/analyze models. Basically you import the CAD drawing into Fluent, make some meshes based on equations and theory, and you can see how fluid works on ur shapes

For FEA, you'll want something like CATIA

West

BTW this is just a very low-level understanding of these things; don't bother nagging me on it.
Guest
 

Post Tue Apr 26, 2005 8:37 pm

HI Guys))
Is here some guys with a little bit fast domputer )) Cose when i flow in FlowWorks 2000 one wing it was 3 hours)))

Maybe some FLUENT guys here can do it) for fun))
This rear wing))Image
compare with)) LOL :lol: :lol: LOL!!
))Image
Just for fun?? Who want to flow model)) send MSN
schumigogogo@hotmail.com
149873562

i'll send model for flow))
Contac me any case if you are interesting in CFD
schumiGO
 
Joined: 6 Jun 2004
Location: Moscow

Post Wed Apr 27, 2005 7:28 am

You might want to contact rough_wood or CFD_Russ to run some CFD on it; don't know their emails on the top of my head.

West

Nice job. Looks like a mix of the Ferrari extended endplate w/ the Toyota cutouts; I would love to see both effects.
Guest
 

Post Wed Apr 27, 2005 8:42 am

Hi )) First attempt))
Do not kill me ))) Just LOL ))
Only velosity))
Image
Image
Image
Image
Image
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LOL )) Who can say anytjing while looking to this pictures)))

Good luck((
Sorry but i couldn't calc downforce :cry: :cry: :cry: :cry:
Maybe next time.... or you know how to do it.....

SOlid Works 2001 FlowWorks2000 + Athlon 900+256MB PCI + 64 MB video

Cal time 7 hours(!)!!!! Number of elements 455 000. 260 iterations(((
Guest
 

Post Wed Apr 27, 2005 8:53 am

Forgot add .....

air flow to wing 70m/s = 252 km/h
schumiGO
 
Joined: 6 Jun 2004
Location: Moscow

Post Wed May 04, 2005 8:35 pm

Hello
I finished the first step in the project pleas if any one has a comment or something pleas contact me .
I want to know if there is any mistake or something.

http://mabdelmoniem.netfirms.com/Projecs/FW.htm

http://mabdelmoniem.netfirms.com/Projec ... ies-04.jpg

http://mabdelmoniem.netfirms.com/Projec ... ies-05.jpg
One of the most important benefit of
CAE Software is that we're approaching
The area of zero prototype Engineering
http://www.mabdelmoniem.netfirms.com
hardhgear
 
Joined: 1 Aug 2004
Location: Cairo Egypt

Post Thu May 05, 2005 4:03 am

What are those triangles doing there?
Bring back wider rear wings, V10s, and tobacco advertisements
West
 
Joined: 6 Jan 2004
Location: San Diego, CA

Post Thu May 05, 2005 8:48 am

What triangles r u talking about?
Guest
 

Post Thu May 05, 2005 11:37 am

I think he's pointing to the triangles that show the direction of the airflow ;)
(at least I think they do so :P )
Steven
 
Joined: 19 Aug 2002
Location: Belgium

Post Thu May 05, 2005 4:43 pm

If any one can find something wrong or other thig pleas tell me.it's my first time
One of the most important benefit of
CAE Software is that we're approaching
The area of zero prototype Engineering
http://www.mabdelmoniem.netfirms.com
hardhgear
 
Joined: 1 Aug 2004
Location: Cairo Egypt

Post Thu May 05, 2005 4:46 pm

I'll module new shape near to the shape the used in the cars these days and publish it
One of the most important benefit of
CAE Software is that we're approaching
The area of zero prototype Engineering
http://www.mabdelmoniem.netfirms.com
hardhgear
 
Joined: 1 Aug 2004
Location: Cairo Egypt

Post Thu May 05, 2005 11:29 pm

Hello all. I am a High School junior from Indiana. I am the captain of a team at school where we design and build a car to get maximum fuel mileage using a 3.5 hp Briggs engine. We used an aluminum tube frame with a fiberglass body. We only got 614 mpg and need about 1000 to win the competition. Here are some of the CAD models of the car. If someone would be able to CFD it or just give some input on the design for next year, that would awesome.

<img src="http://tinypic.com/4v32w9" alt="Image hosted by TinyPic.com">

<img src="http://tinypic.com/4v332p" alt="Image hosted by TinyPic.com">

<img src="http://tinypic.com/4v333s" alt="Image hosted by TinyPic.com">
Put the Titanium-Alloy pedal to the Carbon Fibre.
McLaren_Fan17
 
Joined: 3 Feb 2004
Location: Indiana

Post Fri May 06, 2005 8:34 am

While it's strictly not F1 related (hence should be elsewhere in the forum) I must say I am fairly impressed with the level of design presented here. I would be pleasantly surprised to see work of this level from some of the undergradaute engineering students I tutor.

As regards the improvement of your design, I noticed you are running a fairly large final drive sprocket.
i) Given that you are only running a 3.5 bhp engine, and a very lightl vehicle, I don't see you putting a phenomenal amount of torque into the final drive. I've done some FEA work on minimising sprocket mass for Mini Bajas - private message me your e-mail address and I'll send you some of the pics. I f you send me the torque going into your final drive, sprocket material etc and the relevant dimensions (Sprocket pitch diameter, shaft / coupling diameter etc) I might be able to run it thru my model and give you a more optimal design. For any motorsport application one cannot emphasis the reduction of rotating mass enough.
b) How did you arrive at your final drive ratio? I can't see the sprocket leading up to the final drive from the pics, but just looking at the size of the final drive sprocket it looks like a fairly big ratio. (all my transmission modelling is based on acceleration/top speed optimisation rather than efficiency) Why do you need such a huge final drive ?
ReubenG
 
Joined: 21 Apr 2004

Post Fri May 06, 2005 9:59 am

:lol: :lol: :lol:
Good car)))
Fantastic bodywork))
I can flow it in floworks)) But i can't say that my results well be accurate for 100% .. 90% Is possible))

If you have SolidWorks 2003 or 2001 file )) no problem)))
I think after one night i'll have some results))


Best reagards ))

Sorry guys for for my REAR wing(( It was my first attempt )))

Next time i calc forces)) i promise)))
Schumigogogo@hotmail.com

or fo huge files))
phys.msu@gmail.com
schumiGO
 
Joined: 6 Jun 2004
Location: Moscow

Post Fri May 06, 2005 10:28 am

:lol: :lol: :lol: Sorry mate)) i saw this car and want to add smth)) :lol: :lol:

If smb give me such car and said "must drive 1000"
The 1 think i started to do was finding out resisting place in this car...
If we can't increase HP we can decrease HP loose in resistent part :lol: :lol:

1) Tires.. have to use maximum hard tires and preesure or w/o air tires!!
2) Brake caliper and disk there some power lose.... sure you can put some oil to disc))))))) i did it if iwas in you plase))
3) Put holes in everithing that you can)))) I'ts realy help decrease mass..
(steering rock,final drive, driver seat , sreerin wheel :D :D must be full of holes :lol: :lol: )
4) if it possible do mass distribution from left and right like 50% 50%
5) :lol: :lol: Use very young and little-mass driver)))
I belive you win this competition :!: :!: :!:


Best regares!! CU :lol:
schumiGO
 
Joined: 6 Jun 2004
Location: Moscow

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