waveSurfacePressure

Description

The waveSurfacePressure is a pressure boundary condition whose value is calculated as the hydrostatic pressure based on a given displacement:

$$p = -\rho \, g \, \zeta$$

Property	Description
$\rho$	Density [kg/m^3]
$g$	Acceleration due to gravity [m/s^2]
$\zeta$	Wave amplitude [m]

The wave amplitude is updated as part of the calculation, derived from the local volumetric flux.

Usage

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

Boundary file

<patchName>
{
    type            patch;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type            waveSurfacePressure;

    // Optional entries
    phi             <word>;
    zeta            <word>;
    rho             <word>;

    // Inherited entries
    ...
}

where:

Property	Description	Type	Required	Default
type	Type name: waveSurfacePressure	word	yes	-
phi	Name of flux field	word	no	phi
zeta	Name of wave-amplitude field	word	no	zeta
rho	Name of density field	word	no	rho

The inherited entries are elaborated in:

• mixedFvPPatchScalarFields.H

• The density field is only required if the flux is mass-based as opposed to volumetric-based.

Further information

Tutorial:

• oscillatingBox

Source code:

• waveSurfacePressure

API:

• Foam::waveSurfacePressureFvPatchScalarField

History: Introduced in version 2.1.0