Description🔗

The fixedNormalSlip is a vector/tensor boundary condition that sets the patch-normal component to of the field to the patch-normal component of a user specified field. The tangential component is treated as slip, i.e. copied from the internal field.

Usage🔗

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

Boundary file🔗

<patchName>
{
    type            wall;
    ...
}

Field file🔗

<patchName>
{
    // Mandatory entries
    type                    fixedNormalSlip;
    fixedValue              <vectorField> or <tensorField>;

    // Optional entries
    writeValue              <bool>;

    // Inherited entries;
    ...
}

where:

The inherited entries are elaborated in:

• Foam::transformFvPatchField

Further information🔗

Tutorial:

• $FOAM_TUTORIALS/multiphase/potentialFreeSurfaceDyMFoam/oscillatingBox

Source code:

• $FOAM_SRC/finiteVolume/fields/fvPatchFields/derived/fixedNormalSlip

API:

• Foam::fixedNormalSlipFvPatchField

History:

• Introduced in version 1.5