How to post process transient data

harshasrini · July 20, 2013, 10:39

I have run a URANS simulation for a physical time of 16 seconds and i have around 75 .trn files saved with me. how do i take results every 2 seconds? and how can i import all the .trn files at a time on to starccm+?
and also i need to make an animation of Q-Crriterion.
Am using the 8.02 version
Thanks in advance

siara817 · July 23, 2013, 10:20

Have you tried generating table?

ryancoe · July 30, 2013, 14:57

While, as siara817 mentions, there are ways to use tables for transient data analysis in STAR-CCM+, I find this to be somewhat challenging.

I prefer to output the data to .csv files and process it using another program (e.g., Matlab). This can be done by either:

using a macro to append a single .csv file with a new line of data for every time-step
using the 'Update' function of a Plot to save a .csv file for each time-step

The first of these is a bit more elegant, but may take more time to set up depending on your familiarity with Java and writing macros.

Good luck!

July 20, 2013, 10:39	How to post process transient data	#1
harshasrini New Member Harshavardhana Srinivasan Join Date: Jul 2013 Posts: 5 Rep Power: 13	I have run a URANS simulation for a physical time of 16 seconds and i have around 75 .trn files saved with me. how do i take results every 2 seconds? and how can i import all the .trn files at a time on to starccm+? and also i need to make an animation of Q-Crriterion. Am using the 8.02 version Thanks in advance

July 23, 2013, 10:20		#2
siara817 Senior Member siamak rahimi ardkapan Join Date: Jul 2010 Location: Copenhagen, Denmark Posts: 220 Rep Power: 18	Have you tried generating table? __________________ Good luck Siamak

July 30, 2013, 14:57		#3
ryancoe Member Ryan Coe Join Date: Jun 2010 Location: Albuquerque, NM Posts: 98 Rep Power: 16	While, as siara817 mentions, there are ways to use tables for transient data analysis in STAR-CCM+, I find this to be somewhat challenging. I prefer to output the data to .csv files and process it using another program (e.g., Matlab). This can be done by either: using a macro to append a single .csv file with a new line of data for every time-step using the 'Update' function of a Plot to save a .csv file for each time-step The first of these is a bit more elegant, but may take more time to set up depending on your familiarity with Java and writing macros. Good luck! __________________ Ryan

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