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[Other] topoSet removes some of my cell mesh

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Old   March 27, 2014, 06:09
Default topoSet removes some of my cell mesh
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Hi everybody ,

first attached file shows the part of my mesh created by Gambit. the diamond shape is a porous media that I want to simulate the flow around and within it. I used the below topoSetDict to specify a diamond as my porous region:

Code:
actions
(


{
    name c0;
    type cellSet;
    action new;
    source rotatedBoxToCell;
    sourceInfo
    {
    origin (0 -0.5 0);
    i (0.5 0.5 0); 
    j (-0.5 0.5 0); 
    k (1 1 1);
    }
}

);
and then I used setsToZones to create a zone. when I ran paraFoam, I saw that some of my cells in the diamond are eliminated. Second file shows just the diamond mesh after using topoSet.

anybody knows why some of cells are eliminated?

thanks
Mostafa
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Old   March 27, 2014, 06:24
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I modified the topoSeDict as follows and the problem solved!!!

but I can't understand why these changes solve the problem???

Code:
actions
(


{
    name c0;
    type cellSet;
    action new;
    source rotatedBoxToCell;
    sourceInfo
    {
    origin (0 -0.5 0);
    i (0.5 0.5 -1); 
    j (-0.5 0.5 0); 
    k (0 0 1);
    }
}

);
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