parametric sweep study depending on a parametric sweep study

Hello,

I am having a big issue here in my simulation.

I have two studies:

Study 1:
I did a parametric sweep stationary study with a first physics model (laminar flow) for different geometries with only one parameter variable (channel height). The aim is to compute the flow. Seems to give me good results.

Study 2:
Then I would like to do a second dependent stationary study with a second physics model (transport of diluted species) where I use the flow computed in the first study for convection of only one species. But again, I need to do it for different geometries by varying the very same parameter (channel height) with the same values as in my previous study.

How can I do it?
Defining a second parametric sweep in study 2 and using all dependent variables not solved for from the parametric solution of study 1, using "current" parameter does not give me good results. For instance It computed the pressure again and gave this time wrong results with negative pressures.

Thanks a lot