Preparing Wall Data in pro-STAR

pro-STAR can export the surface of a mesh into a .dbs file. This surface can be imported into Simcenter STAR-CCM+ as either a surface mesh or a CAE model. pro-STAR can also export solution data (steady-state or transient) to a .usr file, which can be imported into Simcenter STAR-CCM+ and mapped onto boundaries.

Only surface meshes from pro-STAR can be imported into Simcenter STAR-CCM+ as a CAE model. Therefore, you can only export wall (surface) post-processing data from pro-STAR, as opposed to cell (volume) data.

NoteSimcenter STAR-CCM+ can only import solution data from a coded (ASCII) format .usr file. Remember these limitations when preparing data in pro-STAR.

The solution data is defined with respect to cell IDs, which must match exactly to the cell IDs in the .dbs file. Otherwise, the solution data are imported incorrectly.

To ensure the cell IDs correlate, follow the procedure below to generate the CAE model and solution data:

  1. Load the pro-STAR model and post-processing data. If you are running a transient analysis, you must also store the data for a given time-step.
  2. Read the required solution data from the stored post-processing data. The command shown below reads the wall temperature data:
    getw, t
  3. Plot and export the surface mesh to a .dbs file using the following commands:
    wplot
    dbase, open, <filename>.dbs
    dbase, put, <id>, star
  4. Use the post-processing Registers to store up to six data sets. By default, scalar data is always read into Register 4 and the x, y, and z components of vector data are read into Registers 1, 2, and 3 respectively. The commands shown below swap the wall temperature data currently stored in Register 4 to Register 6, and reads the wall pressure data into the now empty Register 4:
    operate, swap, 4, 6
    getw, p
  5. Save the solution data to a coded format .usr file using the following commands:
    savu, <filename>.usr, all, coded, all