[bernarde]

Hi all

I am look for a way to continue from my previous log file. Suppose I run a simulation for 2000 iteratins, using for example simpleFoam > log.

The simulation completes, and now I want to run for an additional 1000 iterations. Is there a way I can add these iterations to the first log file, or do I have to create an additional log file? If I run simpleFoam > log again, it overwrites the original log file, and the new one is only from iteration 2000 to 3000. I can do simpleFoam > log2, but then I have two logfiles, and I have to combine them to view residuals etc.

Is there a command to have the original log file appended with the new run data?

Regards

[l_r_mcglashan]

Use:

>>

instead of

>

Test it though to be sure...

[bernarde]

Thanks Laurence, that worked perfectly.

[pranay347]

hi i tried that but it just adding the timesteps to the same file but its not staring from where it stopped, i mean it just starting from begining timestep by adding to the same file where it stopped. is there a way to start simulations from where it stopped?? i mean if the simulations stoped at 0.0106 deltaT but begin deltaT is 0.0002024, i want start simulation from deltaT =0.0106 not from 0.0002024?? can you tell me how to do that..Thanks in advance..

[Yann]

Hi Pranay,

You just have to adjust the startFrom parameter in your controlDict file to latestTime.

Have a look at the documentation : https://cfd.direct/openfoam/user-guide/v7-controlDict/

startFrom Controls the start time of the simulation.

• firstTime: Earliest time step from the set of time directories.
• startTime: Time specified by the startTime keyword entry.
• latestTime: Most recent time step from the set of time directories.

Cheers,
Yann