[kiranczende]

Originally Posted by LuckyTran

It's the same for unsteady as stead. You need the .cas (and usually also a .dat unless you initialize it in your journal) and a journal file (the .jou). There are examples of a .jou in this thread.


The way you submit the job to your cluster depends on the setup. Here you will need help from the cluster admin.

Thank you very much

[Tait10]

Currently moving from my own computer to HPC. Learning a lot about bash scripts and have run into a couple of barriers. Didn't want to start a new thread as this one seems pretty comprehensive.

When writing a .dat file, it appears to only give me the last timestep saved in that .dat file. Do I need to write a new .dat file for every timestep along the way in order for it to save every timestep? I am using TecPlot AS my post-processor if that helps. If this is the case, is there another command for that that doesn't end with me using 6000 lines of code in one .jou file?

Do I also need to write a .cas file along with the .dat file? No moving mesh so I wouldnt have thought it needed it on every ts, just at the end. .jou file posted below for you to have a look, cheers in advance.

; Read case file
rc FFF.1-Setup-Output.cas.gz
; Initialize the solution
/solve/initialize/hyb-initialization
; the time-step size as 0.01 (seconds)
/solve/set/time-step 0.01

;No of it
;Max it per time step
/solve/dual-time-iterate
1000
20
; Write data file (compressed, iteration number included in file name)
wd initial_testing_output_ts1.gz

;No of it
;Max it per time step
/solve/dual-time-iterate
1000
20
; Write data file (compressed, iteration number included in file name)
wd initial_testing_output_ts2.gz
; Exit FLUENT
exit
yes

[bineet_aero]

Originally Posted by diamondx

danobis, here is a working example of a journal files (.jou), when you see a ";", it means i'm asking fluent to skip that command:

/file/read-case-data /home/maghazlani/Analysis/intake_test_3-1-23000.cas
;/define/operating-conditions/operating-pressure 0
;/define/models/solver/density-based yes
;/define/models/energy yes
;/define/models/viscous/kw yes
;/define/boundary-conditions/modify-zones/zone-type 11 pressure-inlet
;/define/materials/change-create air air yes ideal-gas no no no no no no
;/define/boundary-conditions/pressure-inlet inlet yes no 101325 no 27357 no 300 no yes no no no yes 01 0.05268
;/define/boundary-conditions/modify-zones/zone-type 10 pressure-outlet
;/define/operating-conditions/operating-pressure 0
;/adapt/adapt-to-gradients pressure curvature 0 0.7 0.3 yes 100
;/adapt/set/max-number-cells 2000
;/solve/initialize/compute-defaults/pressure-inlet 11
;/solve/initialize/repair-wall-distance yes
;/solve/initialize/initialize-flow
;/adapt/mark-inout-hex yes no 0.000515079 0.205496 0.0156082 0.0451296 -0.000208354 -0.0265887
;/file/auto-save/data-frequency 20000
;/mesh/polyhedra/convert-domain yes yes
;/solve/set/under-relaxation/k 0.5
;/solve/set/under-relaxation/epsilon 0.5
;/solve/set/under-relaxation/turb-viscosity 0.7
;/solve/set/under-relaxation/solid 0.7
;/solve/set/limits 1 5e10 1 5000 1e-14 1e-20 100000 0.05
/solve/iterate 24000
;/display/set/contours/surfaces 0 ()
;/display/set/picture/color-mode color
;/display/set/picture/driver jpeg
;/display/set/contours/n-contour 99
;/display/set/contours/filled-contours yes
;/display/contour mach-number
;/solve/monitors/surface/set-monitor mass-flow "Mass Flow Rate" 0 () no no yes massf 1000
;/display/views/restore-view left
;/display/views/auto-scale
;/display/views/camera/zoom-camera 2
;/display/save-picture /home/maghazlani/Analysis/screenshot-mach-extended_5-4000.jpeg
/file/write-case-data /home/maghazlani/Analysis/intake_test_3-1-47000.cas

Hii, How can be specifically initialise from inlet (standard initilization) ? thanks a lot

[AlexanderZ]

solve initialize initialize-flow OK