Skip to main content

inclinedFilmNusseltInletVelocity

Description

The inclinedFilmNusseltInletVelocity is boundary condition that provides a film velocity boundary condition for inclined films that imposes a sinusoidal perturbation on top of a mean flow rate, where the velocity is calculated using the Nusselt solution.

Usage

The condition requires entries in both the boundary and field files.

Boundary file

<patchName>
{
type patch;
...
}

Field file

<patchName>
{
// Mandatory entries
type inclinedFilmNusseltInletVelocity;
GammaMean <Function1<scalar>>;
a <Function1<scalar>>;
omega <Function1<scalar>>;

// Optional entries
filmRegion <word>;

// Inherited entries
...
}

where:

PropertyDescriptionTypeRequiredDefault
typeType name: inclinedFilmNusseltInletVelocitywordyes-
GammaMeanMean mass flow rate per unit length [kg/s/m]Function1<scalar>yes-
aPerturbation amplitude [m]Function1<scalar>yes-
omegaPerturbation frequency [rad/s/m]Function1<scalar>yes-
filmRegionName of film regionwordnosurfaceFilmProperties

The inherited entries are elaborated in:

  • fixedValueFvPatchField.H
  • Function1.H

Further information

Tutorial:

  • N/A

Source code:

API:

History: Introduced in version 2.2.0