Helper struct to choose the correct index for phases and components. This is need if the porous-medium-flow model features more fluid phases than the free-flow model. More...
stokesIdx | The domain index of the free-flow model. |
darcyIdx | The domain index of the porous-medium-flow model. |
FFFS | The free-flow fluidsystem. |
hasAdapter | Specifies whether an adapter class for the fluidsystem is used. |