| Carlo_P |
May 30, 2019 07:59 |
BC Pressure Driven Flow
Hey guys,
I'm trying to simulate the flow in a T-Pipe, with two Inlet (upper and left) and 1 Outlet.
In the Inlet_up flows a fixed massFlowRate
In the Inlet_sx the flow is coming inside due to a difference of pressure
In the Outlet, the flow is going out.
I have some problems in the BC, in particolar in the Inlet_sx.
I'm not sure if is better to use TotalPressure or fixed value for p and pressureInletOutletVelocity for U.
In the Inlet_up: U=massFlowRate
p=zeroGradient
In the Outlet: U= zeroGrazdient
p= fixed value0
In the Inlet_sx:
U= zeroGradient or pressureInletOutletVelocity?:confused:
p=totalPressure or fixedValue?:confused:
Thanks for any suggestion!:)
Code:
FoamFile
{
version 2.0;
format ascii;
class volVectorField;
location "0";
object U;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
dimensions [0 1 -1 0 0 0 0];
internalField uniform (0 0 0);
boundaryField
{
/*Inlet_up
{
type fixedValue;
value uniform (0 -5 0);
}*/
/*{
type flowRateInletVelocity;
massFlowRate constant 0.000019;
rhoInlet 1.22;
}*/
#include "include/fixedInlet"
Inlet_sx
{
type zeroGradient;
}
Outlet
{
type zeroGradient;
}
Sym
{
type symmetry;
}
Body
{
type noSlip;
}
}
Code:
FoamFile
{
version 2.0;
format ascii;
class volScalarField;
location "0";
object p;
}
dimensions [ 0 2 -2 0 0 0 0 ];
internalField uniform 0.0;
boundaryField
{
Inlet_sx
{
type fixedValue;
value uniform 0;
}
Outlet
{
type fixedValue;
value uniform 0;
}
Inlet_up
{
type zeroGradient;
}
Sym
{
type symmetry;
}
Body
{
type zeroGradient;
}
}
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