I study a time dependent process in COMSOL. I set the time interval to get data from every 10s. However in output I get arbitrary data.
I suppose the times you are observed are the ones taken by the time dependant solver. Even if you specify a given time step the implicit method will take time steps in an adaptive fashion (time steps are taken looking at the error of the solution). You can tweak this in the time dependant solver but it requires a given level of understanding of what you are doing... Finally, and unless you retrieve the time steps taken by the solver, you should observe the solutions at the times you set in the time dependent step.
As far I remember the default setting work as you describe, but with an option of forcing the steps to follow your input.
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