Description🔗
The fixedMeanOutletInlet
is a general boundary condition that extrapolates
field to the patch using the near-cell values and adjusts the distribution to
match the specified, optionally time-varying, mean value. This extrapolated
field is applied as a fixedValue
for outflow faces but zeroGradient
is
applied to inflow faces.
This boundary condition can be applied to pressure when inletOutlet
is
applied to the velocity so that a zeroGradient
condition is applied to the
pressure at inflow faces where the velocity is specified to avoid an
unphysical over-specification of the set of boundary conditions.
Usage🔗
The condition requires entries in both the boundary and field files.
Boundary file🔗
<patchName>
{
type patch;
...
}
Field file🔗
<patchName>
{
// Mandatory entries
type fixedMeanOutletInlet;
meanValue <Function1<Type>>;
// Optional entries
phi <word>;
// Inherited entries;
...
}
where:
Property | Description | Type | Required | Default |
---|---|---|---|---|
type |
Type name: fixedMeanOutletInlet
|
word | yes | - |
meanValue |
Mean value that the field is adjusted to maintain | Function1<Type> | yes | - |
phi |
Name of flux field | word | no | phi |
The inherited entries are elaborated in:
Further information🔗
Tutorial:
- N/A
Source code:
API:
History:
- Introduced in version v1806