我把边界条件都改了一遍，还是有这个问题，做的是一个通道流动，用的是buoyantBoussinesqSimpleFoam，给了进口速度1.82m/s，出口大气压，流体温度20K，壁面300K，边界条件如下：
速度：
FoamFile
{
version 2.0;
format ascii;
class volVectorField;
object U;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [0 1 -1 0 0 0 0];
internalField uniform (1.82 0 0);
boundaryField
{
inlet
{
type fixedValue;
value uniform (1.82 0 0);
}
outlet
{
type zeroGradient;
}
top
{
type noSlip;
}
ground
{
type noSlip;
}
FrontandBack
{
type noSlip;
}
Trib
{
type noSlip;
}
}
压力：
boundaryField
{
inlet
{
type zeroGradient;
}
outlet
{
type fixedValue;
value uniform 0;//大气压出口
}
top
{
type zeroGradient;
}
ground
{
type zeroGradient;
}
FrontandBack
{
type zeroGradient;
}
Trib
{
type zeroGradient;
}
}
参考压力：
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
object p_rgh;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [0 2 -2 0 0 0 0];
internalField uniform 0;
boundaryField
{
"(inlet|outlet|top|ground|FrontandBack|Trib)"
{
type fixedFluxPressure;
value $internalField;
}
}
一直报错如下：
--> FOAM FATAL ERROR:
Continuity error cannot be removed by adjusting the outflow.
Please check the velocity boundary conditions and/or run potentialFoam to initialise the outflow.
Total flux : 0.999375
Specified mass inflow : 0.0167107
Specified mass outflow : 0
Adjustable mass outflow : 0
From function bool Foam::adjustPhi(Foam::surfaceScalarField&, const volVectorField&, Foam::volScalarField&)
in file cfdTools/general/adjustPhi/adjustPhi.C at line 111.
FOAM exiting
