Problem about boundary layer flow.
 

Dear all,

Recently, I am simulating the Blasius boundary flow, I use the icoFoam algorithm, but the result of u/u0 is a little higher than 1 at certain height, I tried several grid and boundary conditions, but always get the result. Does somebody know what's wrong with me? thank you

velocity field：
boundaryField
{
symmetry
{
type symmetryPlane;
}
plate
{
type zeroGradient;
value uniform 0;
}
out
{
type fixedValue;
value uniform 0;
}
in
{
type zeroGradient;
value uniform 0;
}
frontAndBack
{
type empty;
}
}


pressure field
internalField uniform (1 0 0);

boundaryField
{
in
{
type fixedValue;
value uniform (1 0 0);
}

out
{
type zeroGradient;
}

plate
{
type fixedValue;
value uniform (0 0 0);
}
symmetry
{
type symmetryPlane;
}
frontAndBack
{
type empty;
}
}

Wei