Values at Boundaries changing after simulation
 

:confused:

I'm running a combustion problem.

Boundaries: 2 air inlets and one fuel inlet (with all mass flow inlets).

Given at inlets--> Mass flow, Gauge pressure and temperature

at outlet --> pressure outlet with target mass flow rate.

Problem: density values and velocities are matching (with ideal gas law calculations) during individual initialization but changing after iterating the solution.

Model: Species transport (methane 2 step) with ideal gas law selected for material property density

Why is this happening? What is the solution?