Hello friends, I need help with a project I received. I am designing air flow in a thermosyphon loop where a section of the right wall is a heat source and a section of the left wall is a sink. The rest of the walls are adiabatic. The goal of the project is to validate the Boussinesq model against an ideal gas model for varying fluxes: 20, 50, 120. That is, I run the ideal gas model and the Boussinesq model for each flux and see for which flux the Boussinesq model is no longer valid (I need to think about how to do this). I have a problem running the Boussinesq model - I am unable to get convergence for any flux and with any solution method... I need your help. Does anyone know what the problem could be?
