Which software for fluid-dynamics simulation?

[vm.schaefer]

Hello,

I'm searching for a software(open source or free) to simulate an
object, which can rotate freely in all spatial directions. Its
rotation, which induces the movement of the fluid around it, is also
influenced/induced by the flow around it. Furthermore I need to
include gravity.

Does anybody have an idea which software I could use or any
suggestions how I can realize this?

Thanks,
Vera

[none]

Most likely candidate would be OpenFoam.

www.openfoam.org - Linux version; probably the simplest to get working
sourceforge.net/projects/openfoam-extend/ - Files for running under
Windows; you will also need Cygwin

Remember to add in plenty of time to familiarise youself with the program,
especially if you will need to add features such as your object rotating &
being influenced by the flow field. OpenFoam offer support, which may be
useful, but it is not cheap. However, any commercial CFD, with support at
the level you may need for your features, will also not be cheap, and
there is a good chance that your features will migrate to be part of
'standard' OpenFoam in a later release, benefitting us all.

[vm.schaefer]

On 17 Feb., 01:17, none <n...@none.net> wrote:
> On Sat, 16 Feb 2008 08:02:47 -0800, vm.schaefer wrote:
> > Hello,
>
> > I'm searching for a software(open source or free) to simulate an
> > object, which can rotate freely in all spatial directions. Its
> > rotation, which induces the movement of the fluid around it, is also
> > influenced/induced by the flow around it. Furthermore I need to
> > include gravity.
>
> > Does anybody have an idea which software I could use or any
> > suggestions how I can realize this?
>
> > Thanks,
> > Vera
>
> Most likely candidate would be OpenFoam.
>

> www.openfoam.org- Linux version; probably the simplest to get working

> sourceforge.net/projects/openfoam-extend/ - Files for running under
> Windows; you will also need Cygwin
>
> Remember to add in plenty of time to familiarise youself with the program,
> especially if you will need to add features such as your object rotating &
> being influenced by the flow field. OpenFoam offer support, which may be
> useful, but it is not cheap. However, any commercial CFD, with support at
> the level you may need for your features, will also not be cheap, and
> there is a good chance that your features will migrate to be part of
> 'standard' OpenFoam in a later release, benefitting us all.

I've already tried to use OpenFOAM but I'm afraid I can't use it for
this kind
of problem. All the examples I've found were with fixed origin of the
flow or
fixed flow. In now case both were depending on each other.

Is there any other software? I'm using linux, it doesn't need to run
under
windows.

[julien...@gmail.com]

Did you already try Gerris
(http://gfs.sourceforge.net/) This is the only other open source
software I know, but I never tried it. There is essentially one
developer, but the project looks very active.

Hope it helps.

Julien

On Feb 19, 8:11 pm, "vm.schaefer" <vm.schae...@googlemail.com> wrote:
> On 17 Feb., 01:17, none <n...@none.net> wrote:
>
>
>
> > On Sat, 16 Feb 2008 08:02:47 -0800, vm.schaefer wrote:
> > > Hello,
>
> > > I'm searching for a software(open source or free) to simulate an
> > > object, which can rotate freely in all spatial directions. Its
> > > rotation, which induces the movement of the fluid around it, is also
> > > influenced/induced by the flow around it. Furthermore I need to
> > > include gravity.
>
> > > Does anybody have an idea which software I could use or any
> > > suggestions how I can realize this?
>
> > > Thanks,
> > > Vera
>
> > Most likely candidate would be OpenFoam.
>

> >www.openfoam.org-Linux version; probably the simplest to get working