[Sarturn]

Hi! I set up a VOF simulation with two phases (water and vapor), with water at the beginning filling the domain with water flow inlet at 0.004 m/s in a 2D rectangular mesh. Pressure outlet and heat flux input at bottom side. At outlet gauge pressure = 79997.66972 [Pa], operating pressure= 400000 [Pa], so that I have an absolute pressure of 479997.6697 [Pa].

However, even after around 335k iterations, and the wall temperature having passed beyond the saturation temperature of water (423 K at 5 bar), evaporation is not taking place. Heat flux at lower wall is around 90 kW/m2, other wall is adiabatic. I used "to phase frequency" =10 s^-1. There seems to start some nucleation at the bottom surface, but it’s taking way long to form bubbles, or is this normal?

Also, I keep getting this:

Reversed flow on 9 faces of pressure-outlet 11.
344621 1.2086e-04 5.2476e-05 4.2446e-05 1.2394e-08 0:00:01 149
!344621 solution is converged
step flow-time report-def-1
328052 7.7101e-01 4.1939e+02
Flow time = 0.7710071859378018s, time step = 328052
299948 more time steps

Updating solution at time level N…

Global Courant Number [Explicit VOF Criteria] : 0.000153432
done.

It does not iterate and says converged, but the residuals look fine.
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