It seems like eclipse ignores NNCs with small transmissibility.
Small means less than 1e-6 for Eclipse (Even if it says that it
is ignoring values below 1e-5 and/or zero values)!.
This commit now implements the same threshold during IO.
Also fixes a bug when applying EDITNNC, it needs to have cell1<=cell2 to work.
Unfortunately, we first created NNC with applied EDITNNC and then
still used the original NNC data to set the transmissibility. Thus
we were actually ignoring EDITNNC.
This commit fixes this by using the data structure that has EDITNNC
applied.
This seems to be covered for types and functions by our coding style
with room for interpretation. For variables the coding styles asks for
underlines though, but nevermind.
The former order resulted of first apply NCC to the grid
transmissibilities and then applying EDITNNC resulted in NNCs being
scaled twices. The reason is that applyNNCToGridTrans_ scales the NNC
with EDITNNC. With the patch the order of the function calls is
reversed to prevent double scaling.
This is includes neighboring connection and NNCs due to faults. In both
cases the transmissibilities of specified via NNC are added to the set or
computed ones.
This is the first step for supporting NNC in flow.
with this, it is possible do define fluxes of conservation quantities
over the domain boundaries by specifying the thermodynamic state on
the boundary when using the black-oil model. The main motivation is
are thermal fluxes which are required to maintain geothermal
temperature gradients over time.
IMO the term "vanguard" expresses better what these classes are
supposed to do: level the ground for the cavalry. Normally this simply
means to create and distribute a grid object, but it can become quite
a bit more complicated, as exemplified by the vanguard classes of
ebos..
the NTG value for active cells in the topmost layer was always
1.0. This resulted in some deviations in the transmissibilities of the
Norne deck which lead the init file comparison unit tests from
opm-simulators to fail.
Face centers are computed using the cell corners. With this
implementation the face center seen from a cell may be different from the
face center seen from its neighbour.
Face normals with area lenghts are calculated using the face corners
directly not using a triangulation point in the center of the face.
This gives transmissibility almost equal to eclipse.
