Class SystemSrkCPAstatoilFullyImplicitReduced

java.lang.Object

neqsim.thermo.system.SystemThermo

neqsim.thermo.system.SystemEos

neqsim.thermo.system.SystemSrkEos

neqsim.thermo.system.SystemSrkCPA

neqsim.thermo.system.SystemSrkCPAs

neqsim.thermo.system.SystemSrkCPAstatoil

neqsim.thermo.system.SystemSrkCPAstatoilFullyImplicitReduced

All Implemented Interfaces:

Serializable, Cloneable, SystemInterface

public class SystemSrkCPAstatoilFullyImplicitReduced
extends SystemSrkCPAstatoil

Thermodynamic system using the fully implicit CPA-EOS with site type reduction.

Combines two acceleration strategies: (1) the fully implicit coupled Newton-Raphson algorithm from Igben et al. (2026) that eliminates inner XA iterations, and (2) association site symmetry reduction that groups equivalent sites into types with multiplicities, reducing the system dimension from (n_s+1) to (p+1).

The Newton Jacobian is built analytically at every iteration on the reduced system (no Broyden approximation), giving both the per-iteration cost reduction from dimension reduction AND the quadratic convergence rate of full Newton-Raphson.

Version:

1.0

Author:

Even Solbraa

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	serialVersionUID	Serialization version UID.

Fields inherited from class SystemThermo

a, allowPhaseShift, attractiveTermNumber, beta, CapeOpenProperties10, CapeOpenProperties11, characterization, checkStability, chemicalReactionOperations, chemicalSystem, componentNameTag, criticalPressure, criticalTemperature, enhancedMultiPhaseCheck, fluidInfo, fluidName, hydrateCheck, interfaceProp, isInitialized, logger, maxNumberOfPhases, modelName, multiPhaseCheck, numberOfComponents, numberOfPhases, numericDerivatives, oilAssayCharacterisation, phaseArray, phaseIndex, phaseType, resultTable, solidPhaseCheck, standard, waxCharacterisation

Constructor Summary

Constructors

Constructor	Description
SystemSrkCPAstatoilFullyImplicitReduced()	Constructor of a fluid object using the fully implicit reduced CPA-EoS.
SystemSrkCPAstatoilFullyImplicitReduced(double T, double P)	Constructor of a fluid object using the fully implicit reduced CPA-EoS.
SystemSrkCPAstatoilFullyImplicitReduced(double T, double P, boolean checkForSolids)	Constructor of a fluid object using the fully implicit reduced CPA-EoS.

Method Summary

Modifier and Type	Method	Description
SystemSrkCPAstatoilFullyImplicitReduced	clone()	clone.

Methods inherited from class SystemSrkCPA

addComponent, commonInitialization

Methods inherited from class SystemEos

equals

Methods inherited from class SystemThermo

addCapeOpenProperty, addCharacterized, addComponent, addComponent, addComponent, addComponent, addComponent, addComponent, addComponent, addFluid, addFluid, addGasToLiquid, addHydratePhase, addHydratePhase2, addLiquidToGas, addOilFractions, addOilFractions, addPhase, addPhaseFractionToPhase, addPhaseFractionToPhase, addPlusFraction, addSalt, addSolidComplexPhase, addSolidPhase, addTBPfraction, addTBPfraction, addTBPfraction2, addTBPfraction3, addTBPfraction4, addToComponentNames, allowPhaseShift, allowPhaseShift, autoSelectMixingRule, autoSelectModel, calc_x_y, calc_x_y_nonorm, calcHenrysConstant, calcInterfaceProperties, calcKIJ, calculateDensityFromBoilingPoint, calculateMolarMassFromDensityAndBoilingPoint, changeComponentName, checkStability, checkStability, chemicalReactionInit, clearAll, createDatabase, createTable, deleteFluidPhase, display, doEnhancedMultiPhaseCheck, doMultiPhaseCheck, doSolidPhaseCheck, getAntoineVaporPressure, getBeta, getBeta, getCapeOpenProperties10, getCapeOpenProperties11, getCASNumbers, getCharacterization, getChemicalReactionOperations, getCompFormulaes, getCompIDs, getCompNames, getComponentNameTag, getCorrectedVolume, getCorrectedVolumeFraction, getCp, getCp, getCv, getCv, getDensity, getDensity, getdPdVtn, getdVdPtn, getdVdTpn, getEmptySystemClone, getEnthalpy, getEnthalpy, getEntropy, getEntropy, getExergy, getExergy, getFlowRate, getFluidInfo, getFluidName, getGamma, getGasPhase, getGibbsEnergy, getHeatOfVaporization, getHelmholtzEnergy, getHydrateCheck, getIdealLiquidDensity, getInterfacialTension, getInterfacialTension, getInterfacialTension, getInternalEnergy, getInternalEnergy, getInterphaseProperties, getJouleThomsonCoefficient, getJouleThomsonCoefficient, getKappa, getKinematicViscosity, getKinematicViscosity, getKvector, getLiquidPhase, getLiquidVolume, getLowestGibbsEnergyPhase, getMass, getMaxNumberOfPhases, getMixingRule, getMixingRuleName, getModelName, getMolarComposition, getMolarMass, getMolarMass, getMolarRate, getMolarVolume, getMolarVolume, getMolecularWeights, getMoleFraction, getMoleFractionsSum, getNormalBoilingPointTemperatures, getNumberOfComponents, getNumberOfOilFractionComponents, getNumberOfPhases, getOilAssayCharacterisation, getOilFractionIDs, getOilFractionLiquidDensityAt25C, getOilFractionMolecularMass, getOilFractionNormalBoilingPoints, getPC, getPhase, getPhase, getPhase, getPhaseFraction, getPhaseIndex, getPhaseIndex, getPhaseIndex, getPhaseNumberOfPhase, getPhaseOfType, getPhases, getPressure, getPressure, getPressure, getProperties, getProperty, getProperty, getProperty, getResultTable, getSoundSpeed, getSoundSpeed, getStandard, getStandard, getSumBeta, getTC, getTemperature, getTemperature, getTemperature, getThermalConductivity, getThermalConductivity, getTotalNumberOfMoles, getViscosity, getViscosity, getVolume, getVolume, getVolumeFraction, getWaxCharacterisation, getWaxModel, getWeightBasedComposition, getWtFraction, getZ, getzvector, getZvolcorr, hasPhaseType, hasPlusFraction, hasTBPFraction, init, init, init_x_y, initAnalytic, initAnalytic, initBeta, initNumeric, initNumeric, initNumeric, initPhysicalProperties, initPhysicalProperties, initRefPhases, initTotalNumberOfMoles, invertPhaseTypes, isBetaValid, isChemicalSystem, isChemicalSystem, isForcePhaseTypes, isImplementedCompositionDeriativesofFugacity, isImplementedCompositionDeriativesofFugacity, isImplementedPressureDeriativesofFugacity, isImplementedTemperatureDeriativesofFugacity, isInitialized, isMultiphaseWaxCheck, isNumericDerivatives, isPhase, normalizeBeta, orderByDensity, phaseToSystem, phaseToSystem, phaseToSystem, phaseToSystem, readFluid, readObject, readObjectFromFile, reInitPhaseInformation, reInitPhaseType, removeComponent, removePhase, removePhaseKeepTotalComposition, renameComponent, replacePhase, reset, reset_x_y, resetCharacterisation, resetDatabase, resetPhysicalProperties, save, saveFluid, saveFluid, saveObject, saveObjectToFile, saveToDataBase, setAllComponentsInPhase, setAllPhaseType, setAttractiveTerm, setBeta, setBeta, setBinaryInteractionParameter, setBinaryInteractionParameter, setBmixType, setComponentCriticalParameters, setComponentCriticalParameters, setComponentFlowRates, setComponentNames, setComponentNameTag, setComponentNameTagOnNormalComponents, setComponentVolumeCorrection, setComponentVolumeCorrection, setEmptyFluid, setEnhancedMultiPhaseCheck, setFluidInfo, setFluidName, setForcePhaseTypes, setForceSinglePhase, setForceSinglePhase, setHeavyTBPfractionAsPlusFraction, setHydrateCheck, setImplementedCompositionDeriativesofFugacity, setImplementedPressureDeriativesofFugacity, setImplementedTemperatureDeriativesofFugacity, setLastTBPasPlus, setMaxNumberOfPhases, setMixingRule, setMixingRule, setMixingRuleGEmodel, setMixingRuleParametersForComponent, setModel, setModelName, setMolarComposition, setMolarCompositionOfNamedComponents, setMolarCompositionOfPlusFluid, setMolarCompositionPlus, setMolarFlowRates, setMultiPhaseCheck, setMultiphaseWaxCheck, setNumberOfPhases, setNumericDerivatives, setPC, setPhase, setPhaseIndex, setPhaseType, setPhaseType, setPressure, setPressure, setSolidPhaseCheck, setSolidPhaseCheck, setStandard, setTC, setTemperature, setTemperature, setTemperature, setTotalFlowRate, setTotalNumberOfMoles, setUseTVasIndependentVariables, setWaxModelType, toCompJson, toJson, tuneModel, useTVasIndependentVariables, useVolumeCorrection, write, write

Methods inherited from class Object

finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface SystemInterface

addComponent, addComponents, addComponents, calcResultTable, display, getComponent, getComponent, getComponentNames, getDensityAtReferenceConditions, getGamma2, getHydrateFraction, getHydratePhase, getNumberOfMoles, getpH, getPhaseNumberOfPhase, hasComponent, hasComponent, hashCode, hasHydratePhase, hasIons, hasPhaseType, hasSolidPhase, initPhysicalProperties, initProperties, initThermoProperties, prettyPrint, setLiquidDensityModel, setLiquidDensityModel, setMixingRule, setMixingRule, setPhysicalPropertyModel, setPhysicalPropertyModel, validateSetup

Field Details

serialVersionUID

private static final long serialVersionUID

Serialization version UID.

See Also:

• Constant Field Values

Constructor Details

SystemSrkCPAstatoilFullyImplicitReduced

public SystemSrkCPAstatoilFullyImplicitReduced()

Constructor of a fluid object using the fully implicit reduced CPA-EoS.

SystemSrkCPAstatoilFullyImplicitReduced

public SystemSrkCPAstatoilFullyImplicitReduced(double T,
 double P)

Constructor of a fluid object using the fully implicit reduced CPA-EoS.

Parameters:

T - The temperature in unit Kelvin

P - The pressure in unit bara (absolute pressure)

SystemSrkCPAstatoilFullyImplicitReduced

public SystemSrkCPAstatoilFullyImplicitReduced(double T,
 double P,
 boolean checkForSolids)

Constructor of a fluid object using the fully implicit reduced CPA-EoS.

Parameters:

T - The temperature in unit Kelvin

P - The pressure in unit bara (absolute pressure)

checkForSolids - Set true to do solid phase check and calculations

Method Details

clone

public SystemSrkCPAstatoilFullyImplicitReduced clone()

clone.

Specified by:

clone in interface SystemInterface

Overrides:

clone in class SystemSrkCPAstatoil

Returns:

a SystemInterface object