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STAR-CD Droplet/Lagrangian Particles to EnSight

September, 2011
Kevin Colburn, CEI

For those using STAR-CD v4.x family of products (not STAR-CCM+), there are few options available to you for getting your droplet/lagrangian particle information from STAR-CD into EnSight.

1. For those using STAR-CD v4.14 or older, the CEI provided "f33toparticles" routine will convert the .trk file into EnSight Measured data files. For the more recent versions of STAR-CD (circa v4.14 or so), users of EnSight will need to make sure that they use "f33toparticles" version 2.100. This updated conversion routine handles the changes made to the header file in the .trk file circa Spring 2011. Please contact CEI if you do not have version 2.100 of the f33toparticles routine.

2. For those using STAR-CD v4.16 (current public release), users have two options. They can either use the "f33toparticles" routine (version 2.100) to convert the .trk file to EnSight Measured data, or they can now export out the droplets/particles at the same time they export out the EnSight Case Format files. An example of such export in Prostar commands would look like:

load,,
direction,write
ensi,root
ENSI_TEST
getd,post
ensi,all
ensi,done


The "getd" command gets the droplet information. With the droplet information loaded, Prostar will export this information out to Measured Format data. This only works in Prostar v4.16 or above.

3. For those using STAR-CCM+,  v6.04 now has the ability to solve droplet/lagrangian particles. Currently, there is currently no mechanism to get the newly available droplets/lagrangian particles into EnSight. There is an open request to have the export routine in CCM+ act like the export routine from STAR v4.16. Users can export the particles to a "new" track file (also a .trk), but details of the format of this file are still being developed, so there is no current translation routine.

** Notes: As of September 2011, the "f33toparticles" v2.100 has not made it into any public release of EnSight. Users should contact CEI for this version of the conversion routine.

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