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October 22, 2010, 10:59 |
use batch mode to run an unsteady case
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#1 |
New Member
Join Date: Oct 2010
Posts: 3
Rep Power: 16 |
Hi !
I would like to use batch mode to run an unsteady case. I understand how it work for a steady case reading the example ( ; Read case file rc fluent.cas ; Initialize the solution /solve/initialize/initialize-flow ; Calculate 200 iterations it 200 ; Write data file wd example200.dat ; Exit FLUENT exit) But for a unsteady case, you cant use "it" and I've looked in the manual and I didn't find the command. Could somebody help please. Note that I would like to run a case where I have 1800 time steps of 10s each with 50 iterations per time step. Thank you very much ! |
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October 24, 2010, 15:26 |
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#2 |
New Member
Grzegorz Kondora
Join Date: Oct 2010
Posts: 13
Rep Power: 16 |
dti n_step n_iter_per_step, for example:
dti 10000 20 |
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October 24, 2010, 16:50 |
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#3 |
New Member
Join Date: Oct 2010
Posts: 3
Rep Power: 16 |
Thank you very much !
Do I need to indicate a time step ? How ? |
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October 24, 2010, 17:05 |
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#4 |
New Member
Grzegorz Kondora
Join Date: Oct 2010
Posts: 13
Rep Power: 16 |
Do you mean time step size??? The value of time step size can be set in GUI before running in batch mode. You can set time step size via journal as well, just search.
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October 25, 2010, 05:33 |
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#5 |
New Member
Join Date: Oct 2010
Posts: 3
Rep Power: 16 |
I tried the dti command. My computer write :
> invalid command [dti] I don't understand. Anyways thank you for your help. |
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October 25, 2010, 05:42 |
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#6 |
New Member
Grzegorz Kondora
Join Date: Oct 2010
Posts: 13
Rep Power: 16 |
/solve/dti 1000 20
.... |
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September 16, 2014, 18:26 |
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#7 |
New Member
Join Date: Sep 2014
Posts: 1
Rep Power: 0 |
Thank you. It was time saving
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March 29, 2019, 23:44 |
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#8 |
Member
Join Date: Aug 2018
Posts: 90
Rep Power: 8 |
Hi, I want to use batch mode for the 3D steady case and I am using .jou file as
rc fluent.cas rd fluent.dat solve/set/ri 10 solve/set/iterations 15000 file/write-case-data file-name.cas exit yes but it is not working. can anyone tell me what is the problem? thanks |
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April 1, 2019, 11:18 |
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#9 |
Senior Member
Lucky
Join Date: Apr 2011
Location: Orlando, FL USA
Posts: 5,754
Rep Power: 66 |
This is a problem but not the problem:
solve/set/iterations is not a valid command the correct command is solve/set/number-of-iterations That setting is just a setting. It doesn't do anything. To actually iterate you need to do: solve/iterate 15000 or it 15000 |
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April 4, 2019, 09:18 |
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#10 |
Member
Join Date: Aug 2018
Posts: 90
Rep Power: 8 |
Thank you! I used ' it ' command and it worked.
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Tags |
batch unsteady runcase |
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