What does Foam::fvMatrix<Type>::solveSegregatedOrCoupled do?
 

Hi,

Could someone shed some light on this function:

I can't find much in the way of explaination in the source code or online.

It seems to be always called when solve is called, and called explicitly in some of the motion solvers (apparently to "bypass all matrix manipulation").

I understood OpenFOAM always solved equations in a segregated fashion and I'm not sure what coupled means in terms of a single matrix (i.e. single equation).

Thanks :)