Discussion Forum

Hi guys. im working on this catalytic reforming reactor. I've coupled four physics together- Reaction engineering, Concentrated species transport (chcs) , Heat transfer (ht) and free and porous media flow transfer (fp). chcs and ht were synchronized with the reaction engineering module. I later added fp and synchronized it with the other three by selecting the appropiate options in it's fluid property definitions.

Right now, i've been able to solve for the momentum flow and have gotten results for pressure and velocity profiles within the reactor geometry. The problem is, whenever i add a new stationary study (along with the relevant inputs in the variable settings of the new study ie; setting intial values and variables not solved for both to the previous solver sequence, and try solving for any/both of the two remaining physics (chcs or ht), it gives me the error message 'circular dependency variable' for the pressure in 2 of my domains- the input and output domain. Ive checked and rechecked all my inputs and when i tried solving the problem on version 3.4, i got past the momentum balance and even into the energy balance- what do i do? Thank you.