[Joffy]

Hi everyone,



I am a new member and i have a problem with the BC setting.
I'll try to explain my situation:


this is a stationary - laminar simulation performed on an airbox. this geometry contains 2 inlets and 4 outlets.

the purpose of the simulation is to obtain the pressure value at the outlets.

My BC setting is this:

Inlet:

p:
type totalPressure;
p0 uniform 84452.32;

U:
type zeroGradient;


Outlet:

p:
type zeroGradient;

U:
type flowRateOutletVelocity;
massFlowRate constant 0.0402778;
rhoOutlet 1.1841;



with this setting I have a "timestep continuity error" problem. this value increases with each timespet.

does anyone know if the bc setting is correct?



P.S.
- The same simulation done with starccm+ reported me about the backflow to the inlet.
- the mesh was done with HappyHexMesh and checkMesh told me that it's all ok.
- sorry for my bad english