[thibogoddef]

Hello all,

Im running a flow simulation across an airfoil using the k epsilon model. With an inlet speed of 20m/s and I=0.05 I calculated k and epsilon. During the simulation I get an floating point error which i can not lose. The checkmesh function says the mesh is ok.

My k file:
dimensions [0 2 -2 0 0 0 0];

internalField uniform 1.5;

boundaryField
{
inlet
{
type fixedValue;
value uniform 1.5;
}
outlet
{
type zeroGradient;
}
airfoil
{
type kqRWallFunction;
value uniform 1.5;
}
frontAndBackPlanes
{
type empty;
}
}

my epsilon file:
dimensions [0 2 -3 0 0 0 0];

internalField uniform 0.30187;

boundaryField
{
inlet
{
type fixedValue;
value uniform 0.30187;
}
outlet
{
type zeroGradient;
}
airfoil
{
type epsilonWallFunction;
value uniform 0.30187;

frontAndBackPlanes
{
type empty;
}
}

for p all the boundries are set to fixedValue =0.

How can I solve this floating point error?

Kind regards TG

[piu58]

> for p all the boundries are set to fixedValue =0.

This cannot be reached in finite areas.Set zero gradient at the inlet and at the airfoil.

[thibogoddef]

Hello Piu58

Thanks for the reply. After changing these setting the solution converges until it reaches 10 iterations after this there is a large jump and I get a new floating point error.

Do you have any idea how this could come?

Kind regads TG