OpenFOAM guide/LduMatrix;;H

lduMatrix's implementation of the H operator.

$\boldsymbol \psi_n -= A_o \boldsymbol \psi_o$

$\boldsymbol \psi_o -= A_n \boldsymbol \psi_n$

[1] What I'm calling related cells is conventionally called neighbours. But OpenFOAM has a different meaning for neighbours, so the term related cells is used.; and

• $\boldsymbol \psi$ is the field variable of the matrix (a parameter, owned by fvMatrix).

Used by fvMatrix;;H.