Yes. In general I have no problem with UDF (BC) but recently something occurred and I and other colleague do not arrived to run the UDF's. So we went to the Portal and talk with the specialist but he could not him self to run the problem. My problem is already solved because I do not need to compile and with version 16 everything is better.
Thanks, but i think you misunderstood my question. I'm not using Ansys. This paper is about Lattice Boltzmann Method (LBM) and it is implemented by computer programming, like Fortran or Matlab. But thanks anyway.