Used formula to have variable surface heat flux. The simulation time is 200 s. I set the equation as per the image attached
The heat flux value doesn’t follow the equation.
Any help?
Hi @rwamanse, thanks for posting on the forum and welcome to the SimScale Community 
Are you running a transient or steady-state study? Note that steady-state runs are time independent and the “time” reference could be replaced by iterations.
Cheers!
Igor
Hi @igaviano
I am running a transient study. I just want the heat flux to be a certain value from t=5s to t=10s.
But when I run the post simulation, the heat flux value remains a certain value for the whole duration of the simulation.
Tried putting an equation, using the table, but no help.
If there are any suggestions, that would help a lot!
Thank you,
Regards,
Rushil W
Hi @rwamanse, openfoam studies are often tricky when it comes to transience. Could you post a project link? It might be the case that the run is not converged (please note that transient studies might go on even if a given timestep diverges)
Hi @igaviano I cannot make the project public, so I invited you to edit the project out. Feel free to edit it as you need. Are there any resources showing how to converge a run?
Hi @rwamanse, I can see your project now. It’s not an openfoam study and it only contains solids so you can disregard my comments to that effect.
The issue is that you’ve inserted a table with a coordinate dependency, not a time one. You need to change the “X” column to display time:
and the surface heat flux would become time-dependent.
Cheers