this should not change the value of the result at all (because the
total delta which is added to the phase pressures stays identical),
but it should be less confusing when comparing this with the code that
calculates the gravity correction term in the flux calculation.
maybe it worked as-is, or maybe decks which lead to illegal accesses
to the map are incorrect (i.e., they specify threshold pressures for
EQUIL-regions that do not touch), but let's play save here...
... to calculate phase densities for the threshold pressure
defaults. I don't know if the reference simulator does this, but this
makes it consistent with what's done in the flux calculation of flow.
the typo was caused the surface density of the oil phase to be used
instead of the one of gas. This caused the density to be off by a
factor of typically about 900.
using saturated FVFs does not change much, but it does not hurt
because it is also done that way in the simulator.
This makes the defaults for the threshold pressures reasonable again,
but for some reason they are not exactly the same as in the old
implementation. (although the differences are very tolerable.)
On the question why only "Model 2" is affected by this: the other
decks don't use threshold pressures (SPE-X) or do not default any
values (Norne).
the opm-material classes are the ones which are now used by
opm-autodiff and this patch makes it much easier to keep the opm-core
and opm-autodiff results consistent. Also, the opm-material classes
seem to be a bit faster than the opm-core ones (see
https://github.com/OPM/opm-autodiff/pull/576)
I ran the usual array of tests with `flow`: SPE1, SPE3, SPE9 and Norne
all produce the same results at the identical runtime (modulo noise)
and also "Model 2" seems to work.
opm-parser#677 changes the return types for the Deck family of classes.
This patch fixes all broken code from that patch set.
https://github.com/OPM/opm-parser/pull/677
I have doubts if this will change anything in the binaries (and in my
personal opinion, these 'const's look quite ugly and are sometimes a
(small) annoyance when debugging), but I don't mind using the coding
style used by most of the rest of opm-core here.
we're correcting the pressure at the cell center depths to get the
pressure at the face depth, not the other way around. This is
confusing...
thanks to [at]totto82 for discovering this.
This needs to be done if a equilibration region transition is
mentioned by the THPRES keyword, but no value is given for this record
in the third item. (it seems that this is used quite frequently.)
Also, the approach taken by this patch also does not collide with the
restart machinery as far as I can see. This is because the initial
condition is applied by the simulator before the state at the restart
time is loaded. (I interpreted the code that way, but I could be
wrong, could anyone verify this?)
since it is pretty elaborate to calculate initial condition, this
patch is pretty messy. I also do not know if Eclipse does include
capillary pressure in this calculation or not (this patch does). Huge
kudos go to [at]totto82 for reviewing, testing and debugging this.
