Learning Forum

[omid.sarbakhshian]

I am running an FSI model including Fluent VOF solver in a Linux HPC cluster. I have created a journal file that saves fluent data every 5 steps as .h5 files. The problem is the output files have strangely long names as below and cfd-post cannot initialize .flprj file. I guess the file naming is the main reason that cfd-post or ensight cannot read the .flprj file. Below you can see an example of these file names. I would appreciate if someone helps me with this frustrating problem.
 C:UsersomidAppDataLocalTempWB_omid_20132_2wbnew_filesdp0FFFFluentFFF.gz-1-00000.cas.h5

[Rahul]

Could you please share the journal file used to save the data and settings under auto-save in Fluent? 
Is it working if you manually rename the files?

 

[omid.sarbakhshian]

Thanks for the response. It is not working when I manually rename the files. CFD-post gives an error stating the file cannot be initialized. Here is the error:

ERROR

Error reading file 'C:/WB_Projects/VOF/SC/Fluent_1/C_WB_ProjectsVOFVOF_FSI_filesdp0FFFFluentFFF.1.flprj':

The results reader couldn't be initialized.

And below you can see my journal script:

/file/start-transcript FFF-Setup-Transcript.trn
/file/read-case-data fluent.cas.gz

; ====  ====
; Enable expert mode to retain all variables 
/solve/set/expert
yes  ; Allow all variables to be saved
no
no
no

; Save velocity/pressure at intervals 
/solve/results/auto-save/volume-data
pressure
velocity
every 5  ; Saves every 5 iterations
;

; Initialize and run (adjust iterations as needed)
/solve/initialize/init-instantaneous-vel
/solve/iterate 1000

; ==== END ADDITIONS ====

/define/system-coupling/enable
/file/write-data FFF-Setup-Results.dat
/exit
yes

[Rahul]

Which version are you using?

 

[omid.sarbakhshian]

2023 R1 with research license 

[Rahul]

Could you please try with the latest 2025R1 version to see if the issue is reproduced with it? 

If that is not possible, please try saving the results in legacy (.cas/.dat or .cas.gz/.dat.gz) format with the current version.

[omid.sarbakhshian]

Thank you very much. Currently, I do not have access to the latest version, but I will try to save the results in legacy to see what happens. Is this the only way that I can visualize the fluid domain results? I cannot open .flprj with Fluent itself. Also, I cannot export image files or animations since the HPC platform does not have a GUI. So, the only way that comes to my mind is to import the result files in CFD-post or Ensight and see them in the Windows environment.