[eneja]

My problem is the following:
First I solve momentum equation and obtain velocity field (steady state). After that I turn on energy eq. for transient simulation and turn off momentum eq. During my transient simulation (heat transfer) I'd like that the velocity is 0 for a while (there is a condition when this happens), and after that it should be again as it was after steady state calculation.

I would be more than happy if anyone could suggest how to do that!

If this is not possible, is it possible to turn off energy equation, when the condition is fulfilled (but not manually, because it is a parametric analysis, therefore it should be automatically).