[warmboy24]

Hi everyone!

I'm making a simulated blow hot air on the surface of an object, as shown below.



Now, I want to control airflow over time and in multiple cycles. in one cycle (40 s): in the first 5 seconds of hot air is blown into; in the next 35 seconds not blow.

For example, I simulated in two consecutive cycles. from 0s to 5s air is blown into; from 5s to 40s not blow; from 40s to 45s air is blown into; from 45s to 80s not blow.

Can I control it by Experssion? and how do I do that?

Thanks!

[evcelica]

Use the step function, or easier, create a user function.