Description🔗
The greyDiffusiveRadiation
is a boundary condition that
provides a grey-diffuse condition for radiation intensity, I
, for use with
the finite-volume discrete-ordinates model (fvDOM), in which the radiation
temperature is retrieved from the temperature field boundary condition.
An external radiative heat flux can be added using qRadExt
. If
qRadExtDir
is specified, this ray closest to this direction is used.
Otherwise, the face normal is used as direction to set qRadExt
.
Usage🔗
The condition requires entries in both the boundary and field files.
Boundary file🔗
<patchName>
{
type patch;
...
}
Field file🔗
<patchName>
{
// Mandatory entries
type greyDiffusiveRadiation;
// Optional entries
T <word>;
qRadExt <scalar>;
qRadExtDir <vector>;
// Inherited entries
...
}
where:
Property | Description | Type | Required | Default |
---|---|---|---|---|
type |
Type name: greyDiffusiveRadiation
|
word | yes | - |
T |
Name of temperature field | word | no | T |
qRadExt |
Radiative external flux | scalar | no | 0 |
qRadExtDir |
Radiative external flux direction | vector | no | Zero |
The inherited entries are elaborated in:
- mixedFvPatchFields.H
Further information🔗
Tutorial:
Source code:
API:
History:
- Introduced in version 1.6