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meaning of this symbol ".*"

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Old   February 28, 2013, 05:54
Default meaning of this symbol ".*"
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Hi Foamers,

good day for you all, I'm work working with chtMultiRegionFoam, in changeDictionaryDict file there is a symbol i can't understand ".*" like this boundary conditions for pressre
Code:
  
  p_rgh        
    {
        internalField   uniform 0;

        boundaryField
        {
            ".*"
            {
                type            buoyantPressure; 
                value           uniform 0;
            }
i don't understand which patch exactly is descried by this BC, this make me experience great problems with pressure BCs.

thanks in advance.
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Old   February 28, 2013, 08:05
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The dictionary files accept regular expressions. The . means any charachter, and the * any amount times. So this would basically match ALL boundaries.
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".*", chtmultiregionfoam, heat transfer

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