Learning Forum

[i.tamunodienye2]

Hi,

After importing case and data from HPC into Fluent, my component system will look like the figure shown below. Please what command do i apply in Fluent console window to run the simulation for 1 second so the solution will have a green tick check mark confirming the solution is complete and ready for post-processing

Your help is much appreciated

[Rob]

If you're reading a case & data from elsewhere I'd tend to use Fluent standalone rather than Workbench. You can then check you've reached 1s of elapsed time before post processing. I assume you have intermediate data sets as the Fluent data file is for that time step only, there is no history component unless you're also using the time averaging.

[i.tamunodienye2]

There's command to run fluent for just 1 second to complete the simulation and have the solution ticked green
That's what I'm looking for.

[Rob]

Not really, the run duration is based on time step size etc. If you have already run the model on the cluster you should have got a data file to read into the solution section.

[i.tamunodienye2]

I have ran the simulation in HPC and extracted back to Fluent GUI.
I will have to run the simulation for just 1 second for the solution to be complete and have a green check mark.
Its's a command line

[Rob]

OK, so I suggest you skip Workbench and read in the case and data. Running one second may or may not take a long time so may not be a good idea, especially if you already have the results.
If you want the Fluent TUI command have a look in Fluent, you want
/solve/dual-time-iterate and then see what Fluent asks for (number of time steps and iterations per time step).

[i.tamunodienye2]

I just did.
It displayed the maximum number of time step i set up in the HPC
I will reduce the number of time steps to 1 and see what happens

[i.tamunodienye2]

"Number of time steps [900000]" is not editable.
I don't know if you have any trick to edit it to enable me run fluent for 1 time step
This will be key if it can be done

[Rob]

Try typing in 1 and pressing Enter, it's a TUI command, you need to add to it. The number shown is what was run last time, hitting Enter accepts it, or type in the new value

[i.tamunodienye2]

I think fluent is requiring me to initialize.
I will lose all data and case if i do

[Rob]

Which suggests you hadn't read in a data file. Please open Fluent in standalone mode and read in the case & data. Then display an image to determine what the simulation time is.

[i.tamunodienye2]

I'm not clear on how to determine the simulation time. The last data file is what i selected and displayed - Reading "E:/finalliquid/Liquid_files/dp0/FLU-2/Fluent/final-results-2-48000.dat"...

[Rob]

Ah, I'd forgotten that titles aren't on by default any more. Have a look in File-Preferences and turn them on. That adds the time & other information to the images.

[i.tamunodienye2]

Is it ok now

[Rob]

Try plotting something - what do you see?

[i.tamunodienye2]

See what i have

[Rob]

You've run for 84.8s That's over 1s so I assume long enough?