PorousJump

class PorousJump

Bases: Flow360BaseModel

PorousJump defines the Porous Jump boundary condition.

Provide a flat list of every face that should be a porous-jump boundary via surfaces. Each face must be, or become after meshing, one side of a multizone interface: the two coincident faces must already be present in the imported geometry, surface mesh, or volume mesh. List both sides of every interface; the donor/receiver pairing is recovered from the mesh metadata downstream. From a geometry the two coincident CAD faces must already exist and be enclosed by custom volumes; a single shared or non-manifold face is not turned into a porous-jump interface.

Example

>>> fl.PorousJump(
...     surfaces=[
...         volume_mesh["blk-1/Interface-blk-2"],
...         volume_mesh["blk-2/Interface-blk-1"],
...         volume_mesh["blk-1/Interface-blk-3"],
...         volume_mesh["blk-3/Interface-blk-1"],
...     ],
...    darcy_coefficient = 1e6 / fl.u.m **2,
...    forchheimer_coefficient = 1 / fl.u.m,
...    thickness = 1 * fl.u.m,
... )

Deprecated since version The: surface_pairs=[(A, B), ...] pair form is accepted for one more minor release and is rewritten internally into the flat surfaces form. New code should use surfaces= directly.

Attributes

name: str, optional

Name of the PorousJump boundary condition.

Default:

'PorousJump'

entities: EntityList[Surface, MirroredSurface]

Flat list of boundaries that form porous-jump interfaces. Each face must be, or become after meshing, one side of a multizone interface; list both coincident faces of every interface. The donor/receiver pairing is recovered from mesh metadata downstream.

darcy_coefficient: Any

Darcy coefficient of the porous media model which determines the scaling of the viscous loss term. The value defines the coefficient for the axis normal to the surface.

forchheimer_coefficient: Any

Forchheimer coefficient of the porous media model which determines the scaling of the inertial loss term.

thickness: Any

Thickness of the thin porous media on the surface

Methods

classmethod ensure_porous_jump_interfaces(value)

Validate that every surface will exist after meshing and either is, or will become, an interface.

A surface is accepted if it is already an interface OR will become one after meshing (it is a boundary of a CustomVolume, on the farfield enclosed set, or is a dual-belonging face).