CFD help--URGENT!!

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pompelmo
pompelmo
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Joined: 22 Feb 2004, 16:51
Location: Lucija, Slovenia

CFD help--URGENT!!

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Today i've got from my professor an assigment to explore CFD fondanetals until next week....Any liks, literature, simple examples, software (free)..help :)

And is there (who has a cfd program) some kind enough to rum me a simulation of a sphere in motion (R=10cm)..for slow speeds (laminar flow) and high speed (turbolent flow) and send me pistures of flow vectors, pressure arround the sphere.....in gas (air) and in water ("non-flexibele" fluid)

PLEASE, I'll buy you a beer :D

Dolenc
Dolenc
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Joined: 22 Nov 2006, 00:14
Location: Slovenia

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Try here: http://www.f1magazin.com/default.asp?rb=2&id=77

je pa po slovensko, kolega :wink:

pompelmo
pompelmo
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Joined: 22 Feb 2004, 16:51
Location: Lucija, Slovenia

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Hvala;)

Carlos
Carlos
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Joined: 02 Sep 2006, 19:43
Location: Canada

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Your proffessor probably expects a basic introduction to the principles of CDF because in 7 days one cannot master this subject. Consult the major CDF software sites for material, Wikipedia and Howstuffworks and that type of informational site, do a general web search on the subject, consult the university library, consult companies in your country that do this work, search professional engineering sites, search SAE papers, freeware CFD programs are available for student use from several US universities. Ask your professor for source material.

Regards Carlos

Carlos
Carlos
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Joined: 02 Sep 2006, 19:43
Location: Canada

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Just a thought from memory-- search all the threads on F1 technical concerning aero and CDF -- I do believe somene mentioned --or posted or posted a link -- to a CDF simulation study of a sphere that may be of use to you. I do remember running a Google search that identified a "Top Ten CDF Sites"......................................................................
which linked to a series of University sites --- including a list of freeware CDF programs.


Regards Carlos

pompelmo
pompelmo
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Joined: 22 Feb 2004, 16:51
Location: Lucija, Slovenia

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expects an example of an simple object simulation in a cfd program.

Carlos
Carlos
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Joined: 02 Sep 2006, 19:43
Location: Canada

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... one beer you wouldn't have to buy ...

Reca
Reca
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Joined: 21 Dec 2003, 18:22
Location: Monza, Italy

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pompelmo wrote: And is there (who has a cfd program) some kind enough to rum me a simulation of a sphere in motion (R=10cm)..for slow speeds (laminar flow) and high speed (turbolent flow) and send me pistures of flow vectors, pressure arround the sphere.....in gas (air) and in water ("non-flexibele" fluid)
One of the books anybody with an interest in fluid dynamics should spend lot of time looking at is Milton Van Dike “An album of fluid motion”. Look for it at your Uni library, they certainly have it. You’ll find several visualizations of a quantity of experiments subsonic and supersonic, on cylinders, spheres, airfoils, bullets etc etc.
At first they will all look to you just as nice pictures, but after a while you’ll grasp the intrinsic meaning of each one and understand quite a lot about what a fluid likes to do.

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Ciro Pabón
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Joined: 11 May 2005, 00:31

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I've collected these links for my page on car simulation. I haven't posted them in my site because I haven't reviewed the software. Perhaps some of them could help you.

- ftp://ftp.mecheng.asme.org/pub/fluid/ - ASME ftp server on fluid mechanichs, has a lot of software, it is always lacking bandwidth
- http://www-berkeley.ansys.com/cfd/CFD_codes_s.html - Berkely pages on software (code included) for CFD.
- http://www.fluent.com/ - Fluent page (just in case you win the lottery this weekend and can buy it)
- http://www.cfd-online.com/Links/soft.html CFD Online links page
- http://www.amath.washington.edu/~claw/ Clawpack for hyperbolic surfaces (curved manifolds) and shallow water propagation and inundation (actually I've used Tsunami Claw, is good for a newbie like me)
- http://www.freebyte.com/cad/misc.htm Freebyte links page for mechanical engineering (including CFD software)
- http://www.opencfd.co.uk/index.html Open CFD (should I say anything else?) part of OpenFOAM. You should know what it is.
- ftp://ftp.ncsa.uiuc.edu/Mac/UIFlow UIFlow for Macintosh. It rocks, I've toyed with it.

You'll find some other software I've tested, like FENICS, in my links page (sorry again, is at http://www.ciropabon.co.nr).
Ciro