fipy.boundaryConditions.nthOrderBoundaryCondition

Boundary condition of specified derivative order

Classes

NthOrderBoundaryCondition(faces, value, order)

Adds an appropriate contribution to the system of equations

class fipy.boundaryConditions.nthOrderBoundaryCondition.NthOrderBoundaryCondition(faces, value, order)

Bases: BoundaryCondition

Adds an appropriate contribution to the system of equations

Implements

$$\hat{n}\cdot {\mathrm{\nabla }}^{\text{order}}\varphi {|}_{\text{faces}}=\text{value}$$

This boundary condition is generally used in conjunction with a ImplicitDiffusionTerm that has multiple coefficients. It does not have any direct effect on the solution matrices, but its derivatives do.

Creates an NthOrderBoundaryCondition.

Parameters:

• faces (FaceVariable of bool) – Mask of faces where this condition applies.

• value (float) – Value to impose.

• order (int) – Order of the boundary condition. An order of 0 corresponds to a FixedValue and an order of 1 corresponds to a FixedFlux. Even and odd orders behave like FixedValue and FixedFlux objects, respectively, but apply to higher order terms.

__repr__()

Return repr(self).

Last updated on Feb 14, 2025. Created using Sphinx 7.1.2.