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-   -   Rotating Wall (http://www.cfd-online.com/Forums/openfoam/70200-rotating-wall.html)

ata November 17, 2009 05:21

Rotating Wall
 
Hi Foamers
I have a problem. I have a vessel that it's wall is rotating but I don't know how I could imply rotating wall velocity in OpenFOAM. Can any one help me?
Thanks allot

Ata

lth November 25, 2009 10:11

Dear Ata,

I am not a coder, but do know of a boundary condition in src/finiteVolume/fields/fvPatchFields/derived/... known as "movingRotatingWallVelocity" which exists. I am not able to locate in my 1.5 version, but others are getting it to work.

Best, Lori

ata November 26, 2009 01:05

Rotating Wall
 
Hello lth
Thank you very much.

That's true. I see. It is in OpenFoam-dev not in OpenFoam standard.

Best regards


Ata

madad2005 November 26, 2009 03:47

There is a rotatingWallVelocity boundary condition for in the standard OpenFOAM 1.6 and 1.6.x releases. Apply it like so:

wall
{
type rotatingWallVelocity;
origin (0 0 0); // origin of axis and the axis
axis (0 1 0); // about which the wall will rotate
omega 25; // m/s
}

For moving walls:

wall
{
type movingWall;
value uniform (1 0 0); // wall moving at 1m/s in x direction
}

Hope that helps.

ata November 26, 2009 05:01

Rotating Wall
 
Hello Adriano

Thank you very much.

I'll try it as soon as possible.

Best regards.


Ata

madad2005 November 27, 2009 06:03

Hi Ata,

Ignore the boundary condition for movingWall as it doesn't work. Instead, just set it to fixedValue and provide the correct velocity vector.

Good luck!

Cheers,

adriano

ata November 27, 2009 22:28

Rotating Wall
 
Hi Adriano
Thank you very much
So what's rotatingWallVelocity boundary condition for?
Best regards


Ata


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