CFD Online Discussion Forums - createPatch not including all the cell in the bounding box

Hi all,

I am using topoSetDict and createPatchDict to select a part of the patch and make a new patch out of it. But the new patch doesn't include all the cells in the bounding box. Could someone please explain why?

The red cells in the attached graphics is the new patch. It can be seen that it skips many cells in box (0.0 0.006 -0.001)(0.016 0.006 0.0);

My toposetDict and createPatchDict is as:

Code:

actions

(

    {

        name    f0;

        type    faceSet;

        action  new;

        source  boxToFace;

        sourceInfo

        {



        box (0.0 0.006 -0.001)(0.016 0.006 0.0);



        }

    }

);

cteatePatchDict

Code:



pointSync false; //org



// Patches to create.

patches

(

    {

        // Name of new patch

        name Inlet;



        // Type of new patch

        patchInfo

        {

            type patch;

        }



        // How to construct: either from 'patches' or 'set'

        constructFrom set; //org

        //constructFrom patches;



        // If constructFrom = patches : names of patches. Wildcards allowed.

          patches ("periodic.*");

        //patches ("topAtmosphere");



        // If constructFrom = set : name of faceSet

        set f0;

    }

);