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Using createPatch and cyclicAMI in FOAM Extend 4.0

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Old   June 16, 2020, 20:06
Default Using createPatch and cyclicAMI in FOAM Extend 4.0
  #1
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mekim
Join Date: Sep 2019
Posts: 21
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Dear all!

I would like to simulate air flow around a rotating blade with rpm=17188.7, Compressible, transonic flow, and just one blade with cyclic conditions by using OpenFOAM extend 4.0.



when I run createPatch, I get the following error.


Code:
--> FOAM FATAL IO ERROR: 
keyword patchInfo is undefined in dictionary "/home/mekim/foam/mekim-4.0/run/rotor37/system/createPatchDict"

file: /home/mekim/foam/mekim-4.0/run/rotor37/system/createPatchDict from line 20 to line 78.

    From function dictionary::lookupEntry(const word&, bool, bool) const
    in file db/dictionary/dictionary.C at line 395.

FOAM exiting

I think it is due to the version difference. But I couldn't find the error.


createPatchDict:
Code:
pointSync false;

// Patches to create.
patches
(
    {
        //- Master side patch
        name             cyclic1;
        patchInfo
        {
            type            cyclicAMI;
            //matchTolerance  0.001;
            neighbourPatch  cyclic2;
            transform       noOrdering;
        //transform translational;
            separationVector (0.037175513 0.0 0);
        }
        constructFrom patches;
        patches (periodic1);
    //set f0;
    }

    {
        //- Slave side patch
        name                 cyclic2;
        patchInfo
        {
            type            cyclicAMI;
            //matchTolerance  0.001;
            neighbourPatch  cyclic1;
            transform       noOrdering;
     //transform translational;
            separationVector (-0.037175513 0.0 0);
        
        }
        constructFrom patches;
        patches (periodic2);
    //set f0;
    }

);
Thanks for your help.
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Old   June 20, 2020, 05:19
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  #2
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Mattia
Join Date: May 2018
Location: Novara - Italy
Posts: 29
Rep Power: 7
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Hi
foam-extend's concept of AMI is GGI (Generalized Grid Interface); you can find source code at fvMesh/cyclicGgi and fields/cyclicGgi

Beside that, your createPatchDict is wrongly defined (OF syntax) as foam-extend expects patchInfo instead of patches keyword.

Try to change
Code:
patches
(
    {
        //- Master side patch
        name             cyclic1;
        patchInfo
        {
            type            cyclicAMI;
            //matchTolerance  0.001;
            neighbourPatch  cyclic2;
            transform       noOrdering;
        //transform translational;
            separationVector (0.037175513 0.0 0);
        }
        constructFrom patches;
        patches (periodic1);
    //set f0;
    }
...
with

Code:
patchInfo
(
    {
        //- Master side patch
        name             cyclic1;
        dictionary
        {
            type            cyclicGgi;
            //matchTolerance  0.001;
            neighbourPatch  cyclic2;
            transform       noOrdering;
        //transform translational;
            separationVector (0.037175513 0.0 0);
        }
        constructFrom patches;
        patches (periodic1);
    //set f0;
    }
...
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Last edited by time-; June 20, 2020 at 05:20. Reason: cycicAMI to cyclicGgi
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