Dynamic Simulation Software

Are you doing that special project for Israeli Army?

Don't be silly; it's for the Israeli Navy.

Thank you both - very helpful.

Israeli Navy is part of Israeli Army- what difference is there ?

They are both part of Israeli Intelligence.

have you already tried this?

Thanks Chris - yes - and you have caused me to go look at the "new improved" - but by the looks it's still a bit short on pertinent data levels and time efficient modification versatility I seek.

I have been using Salome (http://www.salome-platform.org/) for building models/meshes, and Code_Saturne (http://research.edf.com/research-and-the-scientific-community/softwares/code-saturne/introduction-80058.html) for fluid dynamics analysis. Both are included in the CAELinux Package. There are also OpenFOAM and Elmer that may serve your purposes. I don't know about running these in Windows, though, or whether you can import SolidWorks models into them, although there are a number of different formats for importing/exporting from a number of different applications. You may be able to get a *.stl file out of SolidWorks that you could import into Salome for meshing. Or, perhaps, SolidWorks can output a *.unv mesh file. There are other formats, but these are the ones I generally work with...

Hi CW. I can use any OS platform, so will check these out. It's (I hope) no big deal to learn a new modeling set of buttons, and just switch over the project - if it's giving me the interface. Meanwhile have GA.

If you are not overly sensitive to platform, I highly recommend the CAELinux solution, which includes all of the above, plus a lot of other useful stuff. While it does not include necessarily the latest versions of the pertinent software, everything is packaged to work straight out of the box, which really eases the pain of getting started with the new. Good documentation package. Much easier to learn if you don't have a whole lot of bad habits developed using legacy applications that need to be unlearned!

Yes the package sounds more efficient than knitting up the bits, given I haven't assimilated this new set of jargon, so don't know what does what is called.

Got as far as exploring Salome - seems nice.

Greetings Tovarich,

Is the intended use for this vehicle:

A) High value international cargo transport und delivery

or

2) purely defensive, non-aggressive untersee device for protection of glorious Motherland?

If it's the latter, I have been having promising results from pursuing supercavitating device, mit asymmetric pierced nose plate, also reactive , gas-generating metal ogivle nose cone. Investigating the use of non-magnetic titanium hull , MAD as proximity fuse analog.

Seaman Ratty

Ahoy Searat _{(aboard U-69)}

I'd say;

not A

not 2

possibly €

^{_{(& hey, I like the ogivle nose cone idea)}}

What is that code a,2,........

Is it secret code ?

Not secret - just Socratic.

Try COMSOL, it directly connects to Solid Works.

At $9,000 for a single seat, COMSOL is somewhat more expensive than the OpenSource alternatives at $0.00 for unlimited seats...

Hi Amilo, correct me if I'm wrong, but it requires "in-closure" - which I can cheat - but and/or some form of attachment modeled in, which is in essence what is the current wish to get away from.

Yes come to the cold side

experience the power of the Penguin

The penguin is currently speaking Greek - it would be handy if I could trial this stuff in Mac, rather than first setting up/learning a new OS, and or which version?

Guidance? input? all welcome.

I know you are trying Salome, but what other packages are you after? There are several good OpenSource fluid dynamics packages- Code_Saturne (the one I am most familiar with), OpenFOAM (supposedly getting better- but my experience says, not so user friendly), Elmer, and so on...

Some of these packages are available in Windows versions, and some I have even seen brag about MAC versions. I don't know for sure. Check the various forums to find out what is available.

If you are working with the CAELinux package, then you are working with Ubuntu 8.04. A little secret about Linux and Windows and MAC that the advocates of the various systems don't like to admit- they are all pretty much the same (just a different color, and a couple of commands spelled different, and maybe a couple of different key bindings). But, they are all pretty much the same, and do pretty much the same tricks. If I understand your goal correctly, you want to get down to some serious analysis as quickly as possible...

If you go with the CAELinux version, everything is packaged nice and neatly, and you don't need to learn anything about the operating system to get started. The package comes with excellent documentation (well, excellent when compared to, say, MS) and some pretty good, detailed example problems.

As I understand your problem, I would draw up a solid model in Salome, mesh it, export the mesh in *.unv format, and analyze it with Code_Saturne. Actually, it is not the sub you want to mesh, but the water around the sub. Depending on your machine, clock speed, memory, etc., a simple analysis with a simple mesh can take anywhere from a few seconds to well over 24 hours (hint- if it takes more than 24 hours, abort and redo your mesh).

If you are even remotely computer literate (and I suspect you are), then you should have your first cut at an answer in 3-4 days. Unless you are like me, and every new little tweak leads you off into a wonderful world of exploration and adventure...

One note on the down side- a lot of this software comes out of Europe, and sometimes the documentation is a bit obscure in the translation- but there are some very, very good forums that can help you work through your issues. And, you can always send me a private message and take this conversation off line...

You need a 64 bit processor to run the newest version

you can burn an ISO image on a DVD, probably running off a USB is possible

& run it without installing

Here's some more info on what I think is the relevant page

http://caelinux.com/CMS/index.php?option=com_content&task=view&id=48&Itemid=40

being such a huge file 3.2g, you probably want to use a torrent to download

http://linuxtracker.org/index.php?page=torrent-details&id=d8c851c40342278266b42b4fe2cd741e65e1f844

I don't know if there is a iso capable burner on a Mac

the usb option is gonna be a little tricky on a mac, maybe this would help if you go that way

http://refit.sourceforge.net/

You should give torrents a try they take longer, but aren't affected by interruptions of service. The sum checking is built in

Using transmission you can schedule them to run when you are away from the computer [asleep] & or set the amount of band width it uses.

good thing we have some level of net neutrality or you wouldn't be able to do either