I am currently running a flow simulation with a number of fluid sub-domains. One of these needs to be inactive until a particular time step is reached in the study, I have attempted to apply a time dependant control to the inlet and outlet boundary conditions (of the sub domain) but the simulation fails before the first interaction (as I set the volume flow to zero at zero seconds)
I can't currently think of any way to effectively "turn on" the flow condition and sub domain at a time step. You can do with heat sources fairly easily - but this is a cooling liquid, so i need to understand the flow conditions of it, rather than just simulating it as a body with a heating (or cooling as it is in this case) condition.
Any help greatly appreciated!