Use the results of a study as model input in another study.

Hello!

I am trying simulate how the thermal state of a bubbling fluid evolves over time. To do so I am trying to run a stationary simulation using Comsol's Turbulent Bubbly Flow module and then use the results of that study, namely the liquid's motion, in a time dependent simulation using Comsol's Heat Transfer i Fluids module.

The first simulation runs well and gives the expected results, however I have not been able to use the results of that study as model input in my time dependent simulation. In the settings of the Heat Transfer in Fluids module I specify that the Velocity field should be the results from the first study, yet Comsol seems to run the simulation with no motion what so ever in the fluid.

I have also tried to use a User defined Velocity field, by exporting the result of the first study as data, and then creating a interpolating function which I use to define the Velocity field. I did not get that to work either.

I assume that using the results of one simulation as model input to another must be a common technique, yet I have found very little information on how to do so. Is there anyone who have done this that could point me in the right direction? Or in the direction of resources I could use to figure it out?

Thanks in advance.

Edit: I have attached my project in case anyone wants to take a look.