command to save data file every #time step in a batch script

IBC · July 6, 2022, 10:42

Hi,

I'm running a batch simulation and need to save the cdat or dat file every # time step. I wrote the following commands but didn't work. Does anyone know what might be the error?

file/read-case FullyOpen_covedcorner_0.03m_real.cas
solve/initialize/initialize-flow
solve/set/time-step 0.01
solve/dual-time-iterate 30000 20
file/auto-save/save-data-file-every 6000
file/write-case-data FOFOFOFO_transientfive_real_result.cas
file/confirm-overwrite yes
exit
yes

Thanks!

alainislas · July 10, 2022, 06:53

You can use auto-execute commands. For instance, in your journal file you can add:

solve/execute-commands/add-edit command-1 6000 "time-step" "file/write-data FOFOFOFO_transientfive_real_result_%t.dat"

If your simulation is steady, you can replace %t (time step appended) for %i (which stands for iteration number)

IBC · July 13, 2022, 15:54

I tried this and it didn't work.

file/read-case-data FullyOpen_SS_Tran_0.020m.cas
solve/iterate 1
solve/set/time-step 0.01
solve/dual-time-iterate 30000 20
file/auto-save/data-frequency 6000
file/write-data SSTran_%t_result.dat
file/write-case 020m_SS_Tran_result.cas
file/confirm-overwrite yes
exit
yes

alainislas · July 13, 2022, 15:58

Please open a fresh session in interactive mode, try typing the commands one by one and debug. Some of your commands are a bit redundant.

IBC · July 13, 2022, 16:02

I'm trying to run this simulation using a batch script.
I'm not using a journal file, I am creating a run script.

alainislas · July 13, 2022, 16:03

Please post a screenshot of Fluent's console

July 6, 2022, 10:42	command to save data file every #time step in a batch script	#1
IBC New Member Join Date: Jul 2021 Posts: 23 Rep Power: 3	Hi, I'm running a batch simulation and need to save the cdat or dat file every # time step. I wrote the following commands but didn't work. Does anyone know what might be the error? file/read-case FullyOpen_covedcorner_0.03m_real.cas solve/initialize/initialize-flow solve/set/time-step 0.01 solve/dual-time-iterate 30000 20 file/auto-save/save-data-file-every 6000 file/write-case-data FOFOFOFO_transientfive_real_result.cas file/confirm-overwrite yes exit yes Thanks!

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July 10, 2022, 06:53		#2
alainislas Senior Member Alain Islas Join Date: Nov 2019 Location: Mexico Posts: 101 Rep Power: 5	You can use auto-execute commands. For instance, in your journal file you can add: solve/execute-commands/add-edit command-1 6000 "time-step" "file/write-data FOFOFOFO_transientfive_real_result_%t.dat" If your simulation is steady, you can replace %t (time step appended) for %i (which stands for iteration number)

July 13, 2022, 15:54		#3
IBC New Member Join Date: Jul 2021 Posts: 23 Rep Power: 3	I tried this and it didn't work. file/read-case-data FullyOpen_SS_Tran_0.020m.cas solve/iterate 1 solve/set/time-step 0.01 solve/dual-time-iterate 30000 20 file/auto-save/data-frequency 6000 file/write-data SSTran_%t_result.dat file/write-case 020m_SS_Tran_result.cas file/confirm-overwrite yes exit yes

July 13, 2022, 15:58		#4
alainislas Senior Member Alain Islas Join Date: Nov 2019 Location: Mexico Posts: 101 Rep Power: 5	Please open a fresh session in interactive mode, try typing the commands one by one and debug. Some of your commands are a bit redundant.

July 13, 2022, 16:02		#5
IBC New Member Join Date: Jul 2021 Posts: 23 Rep Power: 3	I'm trying to run this simulation using a batch script. I'm not using a journal file, I am creating a run script.

July 13, 2022, 16:03		#6
alainislas Senior Member Alain Islas Join Date: Nov 2019 Location: Mexico Posts: 101 Rep Power: 5	Please post a screenshot of Fluent's console