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Old 11-15-2007, 11:56 AM   #1
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Good News Everyone

On my home computer, I've recently acquired Solidworks and COSMOS Floworks... Which means, I can do CFD modeling at home

Right now I have an HPV fairing under analysis with about 2.5 million cells (which I assume is floworks speak for elements?) - it's on iteration 281, taking a little more than 30 seconds per iteration... and I have no idea when it will stop (I'm told it stops when it converges - so it's done when it's done ).

Sorry, I just excited because I've been trying to get a hold of this for weeks now. Going into school to use this has been a total downer as I would have to babysit the thing Now I just set it and forget about it, and I'll get data later
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Old 11-15-2007, 12:32 PM   #2
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Wow. That is great news.
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Old 11-15-2007, 01:45 PM   #3
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trebuchet03 -

Oh boy oh boy oh boy oh boy. Where I am going to get a 3D-computer-model of a Saturn SW2?!?!?!?!?!?!??!?!

CarloSW2
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Old 11-15-2007, 01:50 PM   #4
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Quote:
Originally Posted by cfg83 View Post
trebuchet03 -

Oh boy oh boy oh boy oh boy. Where I am going to get a 3D-computer-model of a Saturn SW2?!?!?!?!?!?!??!?!

CarloSW2
If you can get me a model that solidworks can understand... I'll run the simulation It's not as accurate as Fluent, but you don't have to do any meshing - it's mostly just plug and chug
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Old 11-15-2007, 03:30 PM   #5
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trebuchet03 -

Quote:
Originally Posted by trebuchet03 View Post
If you can get me a model that solidworks can understand... I'll run the simulation It's not as accurate as Fluent, but you don't have to do any meshing - it's mostly just plug and chug
I was half joking because I know that you could end up inundated in requests in no time ... However, I do have an obsolete version of AutoCad lying around. If the output file format/version is compatible, then I could do the modeling. Talk about rust, I haven't touched AutoCad in maybe 15 years.

What was the price range of the software you got?

CarloSW2
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Old 11-15-2007, 04:43 PM   #6
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Can I perk up because you've found/made a model of a Mk IV Jetta?

I'd be more than willing to contribute CPU time to a(nother) problem if it can be divided up at all.
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Old 11-15-2007, 05:34 PM   #7
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Can I perk up because you've found/made a model of a Mk IV Jetta?

I'd be more than willing to contribute CPU time to a(nother) problem if it can be divided up at all.
No Mk4 (yet) I'm not sure if it supports distributive processing - I know I have access to my school's cluster, but I'm not certain if cosmos supports it (fluent, does if I recall).
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Old 11-16-2007, 08:10 PM   #8
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I do modelling as a hobby.
I don't have Solid Works, but plan to buy it for sure.
I currently own Softimage XSI which is similar to 3DS Max and Maya.
I have ( or had ) a model of a 1993Honda Civic hatchback that I was creating for the purpose of doing CFD tests.
I planned to create several variations and test them on the computer before attempting the real thing.
I recently had a major crash and my computer is dead now ( I'm using my folks computer at the moment)
The hard drive is still good though and I believe the car model is still useable.
I am ( was ) building the model using polygons.
Can I use a standard .obj mesh that is imported into a CFD program to do tests on, or is there some other process that is needed to use a mesh ?

I planned on modelling fine details such as even the wiring and bolts under the chassis using displacement mapping.
Is displacement mapping even usable in a CFD program ?

(From what I have seen CFD software is really hard to aquire. Some of it is even government controlled to keep it out of the hands of 'terrorists'.)
Also,I have never seen an 'Educational version '. The software is usually so expensive that a company rep will visit the place of purchase. Is the version that you are using owned by your school or can students actually purchase it ?
cfg83 : As far as a SW2 model goes, you might try www.turbosquid.com
They have a lot of meshes.
If you can't find one, I might could ....... maybe volunteer to create a simple one whenever I get my computer situation up and running.
Chrstphr : A Mk IV Jetta ? What year would that be ?
I'm considering buying a Jetta TDI myself, so I would be very interested in creating a model and seeing any resuts that could be gained from CFD.
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Old 11-16-2007, 09:06 PM   #9
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trebutchet03 :
I appologize. I need sleep so I'm really 'spaced out ' out right now.
I notice you have a Jetta - the Mk IV that was spoke of earlier.
This would be the body stye that I too would get.
It is so close to the silouette os a Ford Fusionthat I brought the two together in Photoshop and overlayed them together. They are almost a perfect match.
This excites me because of what was done on the Fusion at Bonneville ( reducing the .Cd down to .22 with a stock appearance )
Not much would have to be done to a Jetta to copy what was done with the Fusion . Just drop it a few inches, slap some disks on it and a wing and voila !

( And don't forget the biodiesel !
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Old 11-18-2007, 02:36 AM   #10
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Nerds laugh at me -

Quote:
Originally Posted by Nerds laugh at me View Post
...

cfg83 : As far as a SW2 model goes, you might try www.turbosquid.com
They have a lot of meshes.
If you can't find one, I might could ....... maybe volunteer to create a simple one whenever I get my computer situation up and running.

...
Thanks, I found this one :

Saturn Sedan Compact Car
http://www.turbosquid.com/FullPrevie....cfm/ID/272809
Attachment 1086

It looks like a 3rd Gen body, but that's close enough. Changing it to be a wagon should be easy, just extrude the rear window to the end. I am guessing that it is smooth on the underside.

Is a "3ds max" file format compatible with what COSMOS needs?

CarloSW2
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