Description🔗
The filmHeightInletVelocity
is boundary condition designed to be used in
conjunction with surface film modelling. It provides a velocity inlet boundary
condition for patches where the film height is specified. The inflow velocity is
obtained from the flux with a direction normal to the patch faces using:
where:
Property | Description |
---|---|
\(\u_p\) | Patch velocity [m/s] |
\(\vec{n}\) | Patch normal vector |
\(\phi\) | Mass flux [kg/s] |
\(\rho\) | Density [kg/m^3] |
\(\vec{S}_f\) | Patch face area vectors [m^2] |
\(\delta\) | Film height [m] |
Usage🔗
The condition requires entries in both the boundary and field files.
Boundary file🔗
<patchName>
{
type wall;
...
}
Field file🔗
<patchName>
{
// Mandatory entries
type filmHeightInletVelocity;
// Optional entries
phi <word>;
rho <word>;
deltaf <word>;
// Inherited entries
...
}
where:
Property | Description | Type | Required | Default |
---|---|---|---|---|
type |
Type name: filmHeightInletVelocity
|
word | yes | - |
phi |
Name of flux field | word | yes | - |
rho |
Name of density field | word | yes | - |
deltaf |
Name of height field | word | yes | - |
The inherited entries are elaborated in:
- fixedValueFvPatchField.H
Further information🔗
Tutorial:
- N/A
Source code:
API:
History:
- Introduced in version 2.0.0