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Problem getting oscillations on flow around the cylinder

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Old   April 17, 2019, 08:09
Unhappy Problem getting oscillations on flow around the cylinder
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Hello,



I have this case, flow around cylinder with heat transfer and I am using buoyantPimpleFoam as the solver. I am interested to see oscillations around the cylinder since the flow is turbulent, with Reynolds number of 35 000. I have tried things but it doesnt seems to give any results, I have inletOutlet as the type on U and outletInlet on p and T, I will copy paste them here, thank you for your assistance.


FoamFile
{
version 2.0;
format ascii;
class volVectorField;
object U;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions [0 1 -1 0 0 0 0];

internalField uniform (0 0 0);

boundaryField
{

rim
{
type inletOutlet;
inletValue uniform (0 1 0);
value uniform (0 0 0);
}

cylinder
{
type noSlip;
}

frontAndBack
{
type empty;
}
}
-------------------------------------------------------------------


FoamFile
{
version 2.0;
format ascii;
class volScalarField;
object p;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions [1 -1 -2 0 0 0 0];

internalField uniform 1e5;

boundaryField
{
rim
{
type outletInlet;
outletValue $internalField;
}

cylinder
{
type fixedFluxPressure;
}
}--------------------------------------------------------------
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
object p_rgh;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

dimensions [1 -1 -2 0 0 0 0];

internalField uniform 1e5;

boundaryField
{
rim
{
type outletInlet;
outletValue $internalField;
}

cylinder
{
type fixedFluxPressure;
}


}
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