CFX Post Session

pps · October 11, 2013, 11:06

Hello!

I need to read out a variable over the length of my blade. I did this with the turbo mode. I exported it to a .csv-file. Worked fine.

Now I need to do this for my last 100 timesteps. I don't want to open 100 .trn-files and initialize the turbo mode, so I recorded a session and attached a loop.
Until now everything works fine.

The only problem is, that the .csv file always gets overwritten. I need one .csv-file with 100 rows.
How can I manage, that the new data-row is attached and not overwrites the old one?

(I also don't want 100 .csv files.)

Does anybody know what to do?

I could post the code if needed, but it's very long!

Thx

ghorrocks · October 12, 2013, 06:33

Easy way: Make the session file write 100 csv files and then use a batch file/python script/whatever to read the 100 csv files and combine it into one file.

Hard way: Use the perl interpreter inside CFD-Post session files to append a new line on the end of the csv file.

I would do it the easy way personally.

October 11, 2013, 11:06	CFX Post Session	#1
pps New Member Peter Join Date: Mar 2013 Location: Austria Posts: 22 Rep Power: 13	Hello! I need to read out a variable over the length of my blade. I did this with the turbo mode. I exported it to a .csv-file. Worked fine. Now I need to do this for my last 100 timesteps. I don't want to open 100 .trn-files and initialize the turbo mode, so I recorded a session and attached a loop. Until now everything works fine. The only problem is, that the .csv file always gets overwritten. I need one .csv-file with 100 rows. How can I manage, that the new data-row is attached and not overwrites the old one? (I also don't want 100 .csv files.) Does anybody know what to do? I could post the code if needed, but it's very long! Thx

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October 12, 2013, 06:33		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,703 Rep Power: 143	Easy way: Make the session file write 100 csv files and then use a batch file/python script/whatever to read the 100 csv files and combine it into one file. Hard way: Use the perl interpreter inside CFD-Post session files to append a new line on the end of the csv file. I would do it the easy way personally.