pihnn.bc.scalar_bc

class pihnn.bc.scalar_bc

Base abstract class for all the boundary conditions employed in scalar problems (Laplace, biharmonic).

abstract __call__(z, u, normal, rhs)

Calculate residual of the boundary condition.

Parameters:

• z (torch.tensor) – Coordinates of the points where the BC is evaluated.

• u (torch.tensor) – Solution evaluated at the ‘z’ coordinates.

• normal (torch.tensor) – Boundary outward normal vectors at the ‘z’ coordinates.

• rhs (torch.tensor) – Boundary condition RHS assigned value at the ‘z’ coordinates.

Returns:

• error (torch.tensor) - Residual of the boundary condition at the ‘z’ coordinates.