CFD Online Discussion Forums - Position of a point in dynamic mesh

Hi

I think that it's not exactly the solution that you are looking for, but maybe help you to find them.

You can try to use the comand "writeCellCentres". With this you obtain 3 fields with the coordinates of the centres of the cells, for the X coordinate, ccx, for the Y coordinate, ccy... for any time that you have.

Later If you have a zone (INLET for my example) whose cells was moving, you can write at the final of the archive ControlDict the code:

Code:

minmaxdomain_ccy

{

    type fieldMinMax;



    functionObjectLibs ("libfieldFunctionObjects.so");



    enabled true;



    mode component;



    outputControl timeStep;

    outputInterval 1;



    log true;



    fields (ccy);

}

And execute the comand "execFlowFunctionObjects" for obtain in a file postProcessing another file minmaxdomain_ccy with an archive with values of time, the minimum and maximum of the position Y of the cells in INLET (with their other coordinates).

Best regards,
Lorena