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| 1 | // -*- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- | ||
| 2 | // vi: set et ts=4 sw=4 sts=4: | ||
| 3 | // | ||
| 4 | // SPDX-FileCopyrightInfo: Copyright © DuMux Project contributors, see AUTHORS.md in root folder | ||
| 5 | // SPDX-License-Identifier: GPL-3.0-or-later | ||
| 6 | // | ||
| 7 | /*! | ||
| 8 | * \file | ||
| 9 | * \ingroup CO2Model | ||
| 10 | * \brief The primary variable switch for the 2p2c-CO2 model | ||
| 11 | */ | ||
| 12 | |||
| 13 | #ifndef DUMUX_2P2C_CO2_PRIMARY_VARIABLE_SWITCH_HH | ||
| 14 | #define DUMUX_2P2C_CO2_PRIMARY_VARIABLE_SWITCH_HH | ||
| 15 | |||
| 16 | #include <iostream> | ||
| 17 | |||
| 18 | #include <dumux/porousmediumflow/compositional/primaryvariableswitch.hh> | ||
| 19 | #include <dumux/porousmediumflow/2p/formulation.hh> | ||
| 20 | |||
| 21 | namespace Dumux | ||
| 22 | { | ||
| 23 | /*! | ||
| 24 | * \ingroup CO2Model | ||
| 25 | * \brief The primary variable switch for the 2p2c-CO2 model controlling the phase presence state variable. | ||
| 26 | * | ||
| 27 | * The phase switch occurs when the equilibrium concentration | ||
| 28 | * of a component in a phase is exceeded, instead of the sum of the components in the virtual phase | ||
| 29 | * (the phase which is not present) being greater that unity as done in the 2p2c model. | ||
| 30 | */ | ||
| 31 | ✗ | class TwoPTwoCCO2PrimaryVariableSwitch | |
| 32 | : public PrimaryVariableSwitch< TwoPTwoCCO2PrimaryVariableSwitch > | ||
| 33 | { | ||
| 34 | using ParentType = PrimaryVariableSwitch< TwoPTwoCCO2PrimaryVariableSwitch >; | ||
| 35 | friend ParentType; | ||
| 36 | |||
| 37 | public: | ||
| 38 | ✗ | using ParentType::ParentType; | |
| 39 | |||
| 40 | protected: | ||
| 41 | // perform variable switch at a degree of freedom location | ||
| 42 | template<class VolumeVariables, class IndexType, class GlobalPosition> | ||
| 43 | 6235698 | bool update_(typename VolumeVariables::PrimaryVariables& priVars, | |
| 44 | const VolumeVariables& volVars, | ||
| 45 | IndexType dofIdxGlobal, | ||
| 46 | const GlobalPosition& globalPos) | ||
| 47 | { | ||
| 48 | using Scalar = typename VolumeVariables::PrimaryVariables::value_type; | ||
| 49 | |||
| 50 | using FluidSystem = typename VolumeVariables::FluidSystem; | ||
| 51 | static constexpr int phase0Idx = FluidSystem::phase0Idx; | ||
| 52 | static constexpr int phase1Idx = FluidSystem::phase1Idx; | ||
| 53 | static constexpr int comp0Idx = FluidSystem::comp0Idx; | ||
| 54 | static constexpr int comp1Idx = FluidSystem::comp1Idx; | ||
| 55 | |||
| 56 | static constexpr bool useMoles = VolumeVariables::useMoles(); | ||
| 57 | static constexpr auto formulation = VolumeVariables::priVarFormulation(); | ||
| 58 | static_assert( (formulation == TwoPFormulation::p0s1 || formulation == TwoPFormulation::p1s0), | ||
| 59 | "Chosen TwoPFormulation not supported!"); | ||
| 60 | |||
| 61 | using Indices = typename VolumeVariables::Indices; | ||
| 62 | static constexpr int switchIdx = Indices::switchIdx; | ||
| 63 | |||
| 64 | // evaluate primary variable switch | ||
| 65 | 6235698 | bool wouldSwitch = false; | |
| 66 | 6235698 | int phasePresence = priVars.state(); | |
| 67 | 6235698 | int newPhasePresence = phasePresence; | |
| 68 | |||
| 69 | // the param cache to evaluate the equilibrium mole fraction | ||
| 70 | typename FluidSystem::ParameterCache paramCache; | ||
| 71 | |||
| 72 | // check if a primary var switch is necessary | ||
| 73 |
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6235698 | if (phasePresence == Indices::secondPhaseOnly) |
| 74 | { | ||
| 75 | // calculate wetting component mole fraction in the second phase | ||
| 76 | ✗ | Scalar xnw = volVars.moleFraction(phase1Idx, comp0Idx); | |
| 77 | ✗ | Scalar xnwMax = FluidSystem::equilibriumMoleFraction(volVars.fluidState(), paramCache, phase1Idx); | |
| 78 | |||
| 79 | // if it is larger than the equilibirum mole fraction switch | ||
| 80 | ✗ | if(xnw > xnwMax) | |
| 81 | ✗ | wouldSwitch = true; | |
| 82 | |||
| 83 | ✗ | if (this->wasSwitched_[dofIdxGlobal]) | |
| 84 | ✗ | xnwMax *= 1.02; | |
| 85 | |||
| 86 | // if it is larger than the equilibirum mole fraction switch: first phase appears | ||
| 87 | ✗ | if (xnw > xnwMax) | |
| 88 | { | ||
| 89 | // wetting phase appears | ||
| 90 | ✗ | if (this->verbosity() > 1) | |
| 91 | ✗ | std::cout << "First phase (" << FluidSystem::phaseName(phase0Idx) << ") appears at dof " << dofIdxGlobal | |
| 92 | ✗ | << ", coordinates: " << globalPos | |
| 93 | ✗ | << ", x^" << FluidSystem::componentName(comp0Idx) << "_" << FluidSystem::phaseName(phase1Idx) << " > x_equilibrium: " | |
| 94 | ✗ | << xnw << " > " << xnwMax << std::endl; | |
| 95 | ✗ | newPhasePresence = Indices::bothPhases; | |
| 96 | if (formulation == TwoPFormulation::p1s0) | ||
| 97 | priVars[switchIdx] = 0.0; | ||
| 98 | else | ||
| 99 | ✗ | priVars[switchIdx] = 1.0; | |
| 100 | } | ||
| 101 | } | ||
| 102 |
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6235698 | else if (phasePresence == Indices::firstPhaseOnly) |
| 103 | { | ||
| 104 | // calculate second component mole fraction in the wetting phase | ||
| 105 | 5941043 | Scalar xwn = volVars.moleFraction(phase0Idx, comp1Idx); | |
| 106 | 11882086 | Scalar xwnMax = FluidSystem::equilibriumMoleFraction(volVars.fluidState(), paramCache, phase0Idx); | |
| 107 | |||
| 108 | // if it is larger than the equilibirum mole fraction switch | ||
| 109 |
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5941043 | if(xwn > xwnMax) |
| 110 | 3564 | wouldSwitch = true; | |
| 111 | |||
| 112 |
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17823129 | if (this->wasSwitched_[dofIdxGlobal]) |
| 113 | 28 | xwnMax *= 1.02; | |
| 114 | |||
| 115 | // if it is larger than the equilibirum mole fraction switch second phase appears | ||
| 116 |
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5941043 | if(xwn > xwnMax) |
| 117 | { | ||
| 118 | // Second phase appears | ||
| 119 |
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3564 | if (this->verbosity() > 1) |
| 120 | ✗ | std::cout << "Second phase (" << FluidSystem::phaseName(phase1Idx) << ") appears at dof " << dofIdxGlobal | |
| 121 | ✗ | << ", coordinates: " << globalPos | |
| 122 | ✗ | << ", x^" << FluidSystem::componentName(comp1Idx) << "_" << FluidSystem::phaseName(phase0Idx) << " > x_equilibrium: " | |
| 123 | ✗ | << xwn << " > " << xwnMax << std::endl; | |
| 124 | 3564 | newPhasePresence = Indices::bothPhases; | |
| 125 | if (formulation == TwoPFormulation::p1s0) | ||
| 126 | priVars[switchIdx] = 0.999; | ||
| 127 | else | ||
| 128 | 7128 | priVars[switchIdx] = 0.001; | |
| 129 | } | ||
| 130 | } | ||
| 131 | // TODO: this is the same as for the 2p2c model maybe factor out | ||
| 132 |
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294655 | else if (phasePresence == Indices::bothPhases) |
| 133 | { | ||
| 134 | 294655 | Scalar Smin = 0.0; | |
| 135 |
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883965 | if (this->wasSwitched_[dofIdxGlobal]) |
| 136 | 3564 | Smin = -0.01; | |
| 137 | |||
| 138 |
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589310 | if (volVars.saturation(phase1Idx) <= Smin) |
| 139 | { | ||
| 140 | 28 | wouldSwitch = true; | |
| 141 | // nonwetting phase disappears | ||
| 142 |
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28 | if (this->verbosity() > 1) |
| 143 | ✗ | std::cout << "Second phase (" << FluidSystem::phaseName(phase1Idx) << ") disappears at dof " << dofIdxGlobal | |
| 144 | ✗ | << ", coordinates: " << globalPos | |
| 145 | ✗ | << ", S_" << FluidSystem::phaseName(phase1Idx) << ": " << volVars.saturation(phase1Idx) | |
| 146 | ✗ | << std::endl; | |
| 147 | 28 | newPhasePresence = Indices::firstPhaseOnly; | |
| 148 | |||
| 149 | if(useMoles) // mole-fraction formulation | ||
| 150 | priVars[switchIdx] = volVars.moleFraction(phase0Idx, comp1Idx); | ||
| 151 | else // mass-fraction formulation | ||
| 152 | 28 | priVars[switchIdx] = volVars.massFraction(phase0Idx, comp1Idx); | |
| 153 | } | ||
| 154 |
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589254 | else if (volVars.saturation(phase0Idx) <= Smin) |
| 155 | { | ||
| 156 | ✗ | wouldSwitch = true; | |
| 157 | // wetting phase disappears | ||
| 158 | ✗ | if (this->verbosity() > 1) | |
| 159 | ✗ | std::cout << "First phase (" << FluidSystem::phaseName(phase0Idx) << ") disappears at dof " << dofIdxGlobal | |
| 160 | ✗ | << ", coordinates: " << globalPos | |
| 161 | ✗ | << ", S_" << FluidSystem::phaseName(phase0Idx) << ": " << volVars.saturation(phase0Idx) | |
| 162 | ✗ | << std::endl; | |
| 163 | ✗ | newPhasePresence = Indices::secondPhaseOnly; | |
| 164 | |||
| 165 | if(useMoles) // mole-fraction formulation | ||
| 166 | priVars[switchIdx] = volVars.moleFraction(phase1Idx, comp0Idx); | ||
| 167 | else // mass-fraction formulation | ||
| 168 | ✗ | priVars[switchIdx] = volVars.massFraction(phase1Idx, comp0Idx); | |
| 169 | } | ||
| 170 | } | ||
| 171 | |||
| 172 |
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6235698 | priVars.setState(newPhasePresence); |
| 173 |
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12471396 | this->wasSwitched_[dofIdxGlobal] = wouldSwitch; |
| 174 | 6235698 | return phasePresence != newPhasePresence; | |
| 175 | } | ||
| 176 | }; | ||
| 177 | |||
| 178 | } // end namespace Dumux | ||
| 179 | |||
| 180 | #endif | ||
| 181 |