fixedNormalSlip

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:

Property	Description	Type	Required	Default
type	Type name: fixedNormalSlip	word	yes	-
fixedValue	User-defined patch-normal field	vectorField/tensorField	yes	-
writeValue	Write patch values (eg, ParaView)	bool	no	false

The inherited entries are elaborated in:

• Foam::transformFvPatchField

Further information

Tutorial:

• oscillatingBox

Source code:

• fixedNormalSlip

API:

• Foam::fixedNormalSlipFvPatchField

History: Introduced in version 1.5