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September 23, 2020, 12:38 |
BC's problem
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#1 |
New Member
andrea chianese
Join Date: May 2020
Posts: 3
Rep Power: 5 |
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 |
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