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356 lines
14 KiB
C++
356 lines
14 KiB
C++
/*
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Copyright 2012 SINTEF ICT, Applied Mathematics.
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This file is part of the Open Porous Media project (OPM).
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OPM is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OPM is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OPM. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <opm/core/props/rock/RockFromDeck.hpp>
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#include <opm/core/grid.h>
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#include <opm/core/utility/ErrorMacros.hpp>
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#include <opm/parser/eclipse/Deck/Deck.hpp>
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#include <opm/parser/eclipse/EclipseState/EclipseState.hpp>
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#include <opm/core/utility/CompressedPropertyAccess.hpp>
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#include <array>
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#include <string>
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#include <vector>
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namespace Opm
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{
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// Helper functions
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namespace
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{
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enum PermeabilityKind { ScalarPerm, DiagonalPerm, TensorPerm, None, Invalid };
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void setScalarPermIfNeeded(std::array<int,9>& kmap,
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int i, int j, int k);
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typedef GridPropertyAccess::ArrayPolicy::ExtractFromDeck<double> PermArray;
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struct PermTag {};
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typedef GridPropertyAccess::Compressed<PermArray, PermTag> PermComponent;
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PermComponent
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extractPermComponent(EclipseStateConstPtr ecl,
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const std::string& kw,
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const int* global_cell);
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PermeabilityKind
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fillTensor(EclipseStateConstPtr eclState,
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const int* global_cell,
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std::vector<PermComponent>& tensor,
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std::array<int,9>& kmap);
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} // anonymous namespace
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// ---- RockFromDeck methods ----
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/// Default constructor.
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RockFromDeck::RockFromDeck()
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{
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}
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void RockFromDeck::init(Opm::EclipseStateConstPtr eclState,
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int number_of_cells, const int* global_cell,
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const int* cart_dims)
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{
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assignPorosity(eclState, number_of_cells, global_cell);
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permfield_valid_.assign(number_of_cells, false);
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const double perm_threshold = 0.0; // Maybe turn into parameter?
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assignPermeability(eclState, number_of_cells, global_cell, cart_dims,
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perm_threshold);
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}
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void RockFromDeck::assignPorosity(Opm::EclipseStateConstPtr eclState,
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int number_of_cells, const int* global_cell)
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{
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typedef GridPropertyAccess::ArrayPolicy
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::ExtractFromDeck<double> Array;
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Array poro_glob(eclState, "PORO", 1.0);
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GridPropertyAccess::Compressed<Array> poro(poro_glob, global_cell);
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porosity_.clear(); porosity_.reserve(number_of_cells);
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for (int c = 0; c < number_of_cells; ++c) {
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porosity_.push_back(poro[c]);
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}
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}
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void RockFromDeck::assignPermeability(Opm::EclipseStateConstPtr eclState,
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int number_of_cells,
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const int* global_cell,
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const int* cartdims,
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double perm_threshold)
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{
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const int dim = 3;
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const int nc = number_of_cells;
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assert(cartdims[0]*cartdims[1]*cartdims[2] > 0);
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static_cast<void>(cartdims); // Squash warning in release mode.
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permeability_.assign(dim * dim * nc, 0.0);
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std::vector<PermComponent> tensor;
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tensor.reserve(6);
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std::array<int,9> kmap;
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PermeabilityKind pkind = fillTensor(eclState, global_cell,
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tensor, kmap);
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if (pkind == Invalid) {
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OPM_THROW(std::runtime_error, "Invalid permeability field.");
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}
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assert (! tensor.empty());
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{
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int off = 0;
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for (int c = 0; c < nc; ++c, off += dim*dim) {
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// SharedPermTensor K(dim, dim, &permeability_[off]);
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int kix = 0;
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for (int i = 0; i < dim; ++i) {
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for (int j = 0; j < dim; ++j, ++kix) {
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// Clients expect column-major (Fortran) order
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// in "permeability_" so honour that
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// requirement despite "tensor" being created
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// row-major. Note: The actual numerical
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// values in the resulting array are the same
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// in either order when viewed contiguously
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// because fillTensor() enforces symmetry.
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permeability_[off + (i + dim*j)] =
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tensor[kmap[kix]][c];
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}
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// K(i,i) = std::max(K(i,i), perm_threshold);
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double& kii = permeability_[off + i*(dim + 1)];
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kii = std::max(kii, perm_threshold);
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}
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permfield_valid_[c] = std::vector<unsigned char>::value_type(1);
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}
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}
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}
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namespace {
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/// @brief
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/// Classify and verify a given permeability specification
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/// from a structural point of view. In particular, we
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/// verify that there are no off-diagonal permeability
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/// components such as @f$k_{xy}@f$ unless the
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/// corresponding diagonal components are known as well.
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///
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/// @param eclState [in]
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/// An internalized Eclipse deck from opm-parser which is
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/// capable of answering which permeability components are
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/// present in a given input deck.
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///
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/// @return
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/// An enum value with the following possible values:
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/// ScalarPerm only one component was given.
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/// DiagonalPerm more than one component given.
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/// TensorPerm at least one cross-component given.
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/// None no components given.
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/// Invalid invalid set of components given.
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PermeabilityKind classifyPermeability(Opm::EclipseStateConstPtr eclState)
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{
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const bool xx = eclState->hasDoubleGridProperty("PERMX" );
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const bool xy = eclState->hasDoubleGridProperty("PERMXY");
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const bool yx = xy;
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const bool yy = eclState->hasDoubleGridProperty("PERMY" );
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const bool yz = eclState->hasDoubleGridProperty("PERMYZ");
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const bool zy = yz;
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const bool zz = eclState->hasDoubleGridProperty("PERMZ" );
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const bool zx = eclState->hasDoubleGridProperty("PERMZX");
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const bool xz = zx;
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int num_cross_comp = xy + xz + yx + yz + zx + zy;
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int num_comp = xx + yy + zz + num_cross_comp;
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PermeabilityKind retval = None;
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if (num_cross_comp > 0) {
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retval = TensorPerm;
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} else {
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if (num_comp == 1) {
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retval = ScalarPerm;
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} else if (num_comp >= 2) {
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retval = DiagonalPerm;
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}
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}
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bool ok = true;
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if (num_comp > 0) {
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// At least one tensor component specified on input.
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// Verify that any remaining components are OK from a
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// structural point of view. In particular, there
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// must not be any cross-components (e.g., k_{xy})
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// unless the corresponding diagonal component (e.g.,
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// k_{xx}) is present as well...
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//
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ok = xx || !(xy || xz || yx || zx) ;
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ok = ok && (yy || !(yx || yz || xy || zy));
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ok = ok && (zz || !(zx || zy || xz || yz));
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}
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if (!ok) {
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retval = Invalid;
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}
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return retval;
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}
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/// @brief
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/// Copy isotropic (scalar) permeability to other diagonal
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/// components if the latter have not (yet) been assigned a
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/// separate value. Specifically, this function assigns
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/// copies of the @f$i@f$ permeability component (e.g.,
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/// 'PERMX') to the @f$j@f$ and @f$k@f$ permeability (e.g.,
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/// 'PERMY' and 'PERMZ') components if these have not
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/// previously been assigned.
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///
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/// @param kmap
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/// Permeability indirection map. In particular @code
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/// kmap[i] @endcode is the index (an integral number in
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/// the set [1..9]) into the permeability tensor
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/// representation of function @code fillTensor @endcode
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/// which represents permeability component @code i
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/// @endcode.
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///
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/// @param [in] i
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/// @param [in] j
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/// @param [in] k
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void setScalarPermIfNeeded(std::array<int,9>& kmap,
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int i, int j, int k)
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{
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if (kmap[j] < 0) { kmap[j] = kmap[i]; }
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if (kmap[k] < 0) { kmap[k] = kmap[i]; }
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}
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/// @brief
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/// Extract pointers to appropriate tensor components from
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/// input deck. The permeability tensor is, generally,
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/// @code
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/// [ kxx kxy kxz ]
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/// K = [ kyx kyy kyz ]
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/// [ kzx kzy kzz ]
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/// @endcode
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/// We store these values in a linear array using natural
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/// ordering with the column index cycling the most rapidly.
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/// In particular we use the representation
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/// @code
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/// [ 0 1 2 3 4 5 6 7 8 ]
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/// K = [ kxx, kxy, kxz, kyx, kyy, kyz, kzx, kzy, kzz ]
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/// @endcode
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/// Moreover, we explicitly enforce symmetric tensors by
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/// assigning
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/// @code
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/// 3 1 6 2 7 5
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/// kyx = kxy, kzx = kxz, kzy = kyz
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/// @endcode
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/// However, we make no attempt at enforcing positive
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/// definite tensors.
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///
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/// @param [in] eclState
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/// An internalized Eclipse deck object which capable of
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/// answering which permeability components are present in
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/// a given input deck as well as retrieving the numerical
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/// value of each permeability component in each grid cell.
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///
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/// @param [out] tensor
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/// @param [out] kmap
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PermeabilityKind
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fillTensor(EclipseStateConstPtr eclState,
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const int* global_cell,
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std::vector<PermComponent>& tensor,
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std::array<int,9>& kmap)
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{
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PermeabilityKind kind = classifyPermeability(eclState);
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if (kind == Invalid) {
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OPM_THROW(std::runtime_error, "Invalid set of permeability fields given.");
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}
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assert (tensor.empty());
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for (int i = 0; i < 9; ++i) { kmap[i] = -1; }
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enum { xx, xy, xz, // 0, 1, 2
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yx, yy, yz, // 3, 4, 5
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zx, zy, zz }; // 6, 7, 8
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// -----------------------------------------------------------
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// 1st row: [ kxx, kxy ], kxz handled in kzx
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if (eclState->hasDoubleGridProperty("PERMX" )) {
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kmap[xx] = tensor.size();
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tensor.push_back(extractPermComponent(eclState, "PERMX", global_cell));
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setScalarPermIfNeeded(kmap, xx, yy, zz);
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}
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{
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kmap[xy] = kmap[yx] = tensor.size(); // Enforce symmetry.
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tensor.push_back(extractPermComponent(eclState, "PERMXY", global_cell));
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}
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// -----------------------------------------------------------
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// 2nd row: [ kyy, kyz ], kyx handled in kxy
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if (eclState->hasDoubleGridProperty("PERMY" )) {
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kmap[yy] = tensor.size();
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tensor.push_back(extractPermComponent(eclState, "PERMY", global_cell));
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setScalarPermIfNeeded(kmap, yy, zz, xx);
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}
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{
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kmap[yz] = kmap[zy] = tensor.size(); // Enforce symmetry.
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tensor.push_back(extractPermComponent(eclState, "PERMYZ", global_cell));
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}
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// -----------------------------------------------------------
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// 3rd row: [ kzx, kzz ], kzy handled in kyz
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{
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kmap[zx] = kmap[xz] = tensor.size(); // Enforce symmetry.
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tensor.push_back(extractPermComponent(eclState, "PERMZX", global_cell));
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}
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if (eclState->hasDoubleGridProperty("PERMZ" )) {
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kmap[zz] = tensor.size();
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tensor.push_back(extractPermComponent(eclState, "PERMZ", global_cell));
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setScalarPermIfNeeded(kmap, zz, xx, yy);
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}
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return kind;
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}
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PermComponent
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extractPermComponent(EclipseStateConstPtr ecl,
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const std::string& kw,
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const int* global_cell)
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{
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PermArray k(ecl, kw, 0.0); // return 0.0 if not present.
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return PermComponent(k, global_cell);
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}
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} // anonymous namespace
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} // namespace Opm
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