| venkcy |
September 19, 2019 05:49 |
Solving flow past cylinder submerged near a free surface
Greetings!
I am trying to simulate flow field of cylinder submerged near a free surface. I am not able to validate the results with the published literature even qualitatively under the same nondimensional parameters. I believe the problem might be in the boundary conditions.
I am attaching the boundary condition files for alpha, pressure and velocity. I need your kind feedback.
Thanks for your time.
Code:
//alpha
dimensions [0 0 0 0 0 0 0];
internalField uniform 0;
boundaryField
{
inletAir
{
type fixedValue;
value uniform 0;
}
inletWater
{
type fixedValue;
value uniform 1;
}
outlet
{
type zeroGradient;
}
ground
{
type zeroGradient;
}
cylinder
{
type zeroGradient;
}
sides
{
type empty;
}
top
{
type zeroGradient;
}
}
Code:
//pressure
dimensions [1 -1 -2 0 0 0 0];
internalField uniform 0;
boundaryField
{
inletAir
{
type zeroGradient;
value uniform 0;
}
inletWater
{
type zeroGradient;
value uniform 0;
}
outlet
{
type zeroGradient;
//p0 uniform 0;
}
ground
{
type fixedFluxPressure;
value uniform 0;
}
top
{
type fixedFluxPressure;
value uniform 0;
}
cylinder
{
type zeroGradient;
}
sides
{
type empty;
}
}
Code:
//Velocity
dimensions [0 1 -1 0 0 0 0];
internalField uniform (0.018 0 0);
boundaryField
{
inletAir
{
type fixedValue;
value uniform (0.018 0 0);
}
inletWater
{
type fixedValue;
value uniform (0.018 0 0);
}
outlet
{
type zeroGradient;
value uniform (0 0 0);
}
sides
{
type empty;
}
cylinder
{
type fixedValue;
value uniform (0 0 0);
}
top
{
type slip;
}
ground
{
type slip;
}
}
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