Learning Forum

[jh.kim01]

I am currently working on an axial turbine simulation in Ansys Fluent and attempting to compare results between the pressure-based and density-based solvers.

Using the pressure-based solver, the case runs smoothly and converges without issue. However, when I switch to the density-based solver using the same case setup, the solution consistently diverges during the solve process.

Is there a known limitation or recommended approach when using the density-based solver for turbomachinery applications such as axial turbines? Could you advise whether Fluent supports density-based solver for this type of simulation, and if so, what adjustments might be necessary to ensure stability?

Thank you in advance for your assistance.

[Essence]

Hello,

Do you have any high pressure regions in your domain to use the density based solver? May I know the specific reason for switching to DBNS?

Thank you.