one-step simulation for two-stage model with UDF
 

My CFD model consists of two stages:

1) the transient flow of fluid A inside a stirred vessel achieving steady state;
2) transient additional of fluid B into fluid A until mixture achieving steady state;

My two-stage CFD model can be done manually which means the second stage only be simulated after the first stage simulation completed and stopped. However, I would like to simulate them in one-step simulation. Is there any Macros and UDF example available for my case? Please provide your valued comments on my CFD model.

Thanks for help. I appreciate it.

Thanks a lot.

:)