It is not quite complete yet for the following reasons:
- it does not compute state.surfacevol(),
- the InitialStateComputer class does not compute Rs or Rv,
- it has not been verified.
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).
depending on the grid implementation, the grid view / grid part object
does not necessarily follow the change. For some reason, the grid part
still does not work in the parallel case (tested with dune-fem 2.4),
but that seems to be an issue on the dune-fem side.
Apply swatInit in the initialization
Stop using the equilGrid in the initialization code
Keep The initialFluidState until end of first time step to make it
possible for flow to output it.
This reverts commit c873e8c92da389bc1d6bc4ed2a5241faddfa7630.
since OPM/opm-simulators#1287 has been merged there are no "in tree"
upstreams which use that mechanism anymore.
this now works with the unmodified master version of flow from
opm-simulators. we take the liberty to emit a deprecation warning,
though. this complicates things quite a bit.
This gets rid of some special-purpose code in generic places (i.e. the
`SimulatorParameter` class) and no special hacks to the property and
parameter system are required anymore.
Atgeirr Flø Rasmussen
Bård Skaflestad
Tor Harald Sandve
Andreas Lauser
Joakim Hove
Arne Morten Kvarving
Robert Kloefkorn