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-   -   How to intialize gamma in a specified Zone (http://www.cfd-online.com/Forums/openfoam-solving/59289-how-intialize-gamma-specified-zone.html)

cricke December 11, 2007 06:04

I have imported a 2D mesh from
 
I have imported a 2D mesh from Gambit with the argument -writeZones. I now want to initialize a value in the specified Zone using a clone of the dambreak case. How do I refer to the zone (as when setting a porous zone)instead of a box as they do in the damBreak case? My zone is specified under polymesh in cellZones and faceZones.


I have tried to replace the 'boxToCell' with the zone name but without progress. Can anyone tell my how to write the setFieldsDict?

defaultFieldValues
(
volScalarFieldValue gamma 0
volVectorFieldValue U (0 0 0)
);

regions
(
boxToCell
{
box (0 0 -1) (0.1461 0.292 1);

fieldValues
(
volScalarFieldValue gamma 1
);
}
);


/Christofer

prashant24983 December 11, 2007 06:17

Use the setFields utility just
 
Use the setFields utility just like you use any other utility.

In the console when you type setFields you will be able to see the format.

$ setFields /user/OpenFoam/run/tutorial damBreak

Then check the gamma in paraFoam.

cricke December 11, 2007 06:23

Hi I have run the setFields a
 
Hi
I have run the setFields and they suggest several commands:

(
pointToCell
boxToCell
zoneToPoint
surfaceToCell
nearestToCell
zoneToCell
cellToFace
pointToFace
normalToFace
boxToFace
rotatedBoxToCell
fieldToCell
cellToPoint
zoneToFace
nbrToCell
patchToFace
labelToCell
pointToPoint
faceToCell
boxToPoint
labelToPoint
boundaryToFace
faceToPoint
labelToFace
shapeToCell
faceToFace
cellToCell
surfaceToPoint
)

Which one shall i use and how do I edit my setFieldsDict? The Zone-name is 'Mesa' and I have tried the following without success:

defaultFieldValues
(
volScalarFieldValue gamma 0
volVectorFieldValue U (0 0 0)
);

regions
(
faceToCell

Mesa

{

fieldValues
(
volScalarFieldValue gamma 1
);
}
);

MikeyMike July 31, 2011 05:45

creating volume zones with alpha1
 
Dear Christofer,

did you manage to solve the problem??
I am very interested in the outgoing of your application!

Here is the link to my posted problem, maybe you can see the relation and give me a hint:
http://www.cfd-online.com/Forums/ope...ing-faces.html

Currently I am trying to set volume zones within my mesher Icem (Ansys) to write them in with -writeZones during the transfer to OF.
How can I relate to them afterwards and how can I set Alpha1 to 1 in my desired volume zone??

Thank you very much for helping!
Greetings, Markus.


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