FiniteVolumeAppendBoundaryCondition

Source: models/finite_volume/FiniteVolumeAppendBoundaryCondition.py

Concatenate a single BC value onto the trailing sub-batch axis.

With input shape (*B, N) the output has shape (*B, N+1). Left-side: \(output = [bc, *input]\); right-side: [*input, bc].

The bc value is a static buffer (per the KWN HIT, bc_value = 0.0); chain rule is wired only for input, where the derivative is a bidiagonal selector ((N+1, N) identity block with one zero row). The output variable name defaults to <input>_with_bc_<side>.

Inputs

input — input · Scalar · required

Input tensor to append the boundary condition to.

Outputs

output — output · Scalar

Output tensor name. Defaults to input + ‘_with_bc_left’ or ‘_with_bc_right’.

Parameters

bc_value — parameter · Scalar · required

Boundary condition value to append.

Other options

side — str · default left

Which side to append the boundary condition value to. Options are: right, left