[zohaibaltaf.6]

Hello everyone, i am facing an issue while solving steam flow through a nozzle in Ansys fluent
Fluid: water vapor
BCs: Pressure Inlet (2000 kPa, 493 K)
Pressure Outlet: variable pressure like1800, 1600, 1400 kPa , etc along with total temp of 493 K)

Issue: The problem is steam flow through nozzle never gets choked no matter how much pressure i reduce at outlet, the mass flow keeps on increasing.

Note: i think there might be a problem in using water vapors as fluid here, it appears that this fluid is built in fluent and has constant density, which might not be suitable in this case.

Need serious help, thank you in advance.