In summary:
- added RsFunction (base class),
- made NoMixing, RsVD, RsSatAtContact inherit RsFunction,
- RS and RV are no longer template arguments for EquilReg class,
- EquilReg constructor now takes two shared_ptr<Miscibility::RsFunction>,
- use of constructor updated, mostly using make_shared.
The initial implementation of RK4IVP<>::operator() failed to take
into account the possibility that we might need to evaluate the
function outside the vertical span for which it was initially
defined. This situation occurs, for instance, in the not uncommon
cases of the GOC being above or the WOC being below the model.
This commit installs a crude Hermitian extrapolation procedure to
handle these cases. Refinements are likely.
This commit adds support for assigning the initial phase pressure
distribution to a subset of the total grid cells. This is needed in
order to fully support equilibration regions. The existing region
support (template parameter 'Region' in function 'phasePressures()')
was only used/needed to define PVT property (specifically, the fluid
phase density) calculator pertaining to a particular equilibration
region.
This commit adds a simple facility for calculating initial phase
pressures assuming stationary conditions, a known reference pressure
in the oil zone as well as the depth and capillary pressures at the
water-oil and gas-oil contacts.
Function 'Opm::equil::phasePressures()' uses a simple ODE/IVP-based
approach, solved using the traditional RK4 method with constant step
sizes, to derive the required pressure values. Specifically, we
solve the ODE
dp/dz = rho(z,p) * g
with 'z' represening depth, 'p' being a phase pressure and 'rho' the
associate phase density. Finally, 'g' is the acceleration of
gravity. We assume that we can calculate phase densities, e.g.,
from table look-up. This assumption holds in the case of an ECLIPSE
input deck.
Using RK4 with constant step sizes is a limitation of this
implementation. This, basically, assumes that the phase densities
varies only smoothly with depth and pressure (at reservoir
conditions).
this has recently been moved there. Since redundancy is considered to
be bad, switch eWoms to it.
I've tested this with Norne: No measureable difference, as expected.
for some reason the results have changed. (IMO, the new ones look more
correct in paraview.) The reason this was not discovered earlier is
that this test depends on the presence of dune-alugrid and the CI
infrastructure does not deal with this.
