/*
* Add a phase to the kinetics manager object. This must
* be done before the function init() is called or
* before any reactions are input.
* The following fields are updated:
* m_start -> vector of integers, containing the
* starting position of the species for
* each phase in the kinetics mechanism.
* m_surfphase -> index of the surface phase.
* m_thermo -> vector of pointers to ThermoPhase phases
* that participate in the kinetics
* mechanism.
* m_phaseindex -> map containing the string id of each
* ThermoPhase phase as a key and the
* index of the phase within the kinetics
* manager object as the value.
*/
void Kinetics::addPhase(thermo_t& thermo) {
// if not the first thermo object, set the start position
// to that of the last object added + the number of its species
if (m_thermo.size() > 0) {
m_start.push_back(m_start.back()
+ m_thermo.back()->nSpecies());
}
// otherwise start at 0
else {
m_start.push_back(0);
}
// the phase with lowest dimensionality is assumed to be the
// phase/interface at which reactions take place
if (thermo.nDim() <= m_mindim) {
m_mindim = thermo.nDim();
m_rxnphase = nPhases();
}
// there should only be one surface phase
int ptype = -100;
if (type() == cEdgeKinetics) ptype = cEdge;
else if (type() == cInterfaceKinetics) ptype = cSurf;
if (thermo.eosType() == ptype) {
// if (m_surfphase >= 0) {
// throw CanteraError("Kinetics::addPhase",
// "cannot add more than one surface phase");
// }
m_surfphase = nPhases();
m_rxnphase = nPhases();
}
m_thermo.push_back(&thermo);
m_phaseindex[m_thermo.back()->id()] = nPhases();
}
/**
* Get the equilibrium constants of all reactions, whether
* reversible or not.
*/
void InterfaceKinetics::getEquilibriumConstants(doublereal* kc) {
int i;
int n, nsp, k, ik=0;
doublereal rt = GasConstant*thermo(0).temperature();
doublereal rrt = 1.0/rt;
int np = nPhases();
for (n = 0; n < np; n++) {
thermo(n).getStandardChemPotentials(DATA_PTR(m_mu0) + m_start[n]);
nsp = thermo(n).nSpecies();
for (k = 0; k < nsp; k++) {
m_mu0[ik] -= rt*thermo(n).logStandardConc(k);
m_mu0[ik] += Faraday * m_phi[n] * thermo(n).charge(k);
ik++;
}
}
fill(kc, kc + m_ii, 0.0);
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_mu0), kc);
for (i = 0; i < m_ii; i++) {
kc[i] = exp(-kc[i]*rrt);
}
}
void InterfaceKinetics::getExchangeCurrentQuantities() {
/*
* Combine vectors of the standard Gibbs free energies of the
* species and the standard concentrations to get change in
* standard chemical potential for reaction.
* Outputs:
* - m_deltaG0 -- stores standard state chemical potentials
* - m_ProdStanConcReac -- stores products of standard concentrations
*/
int ik = 0;
int np = nPhases();
for (int n = 0; n < np; n++) {
thermo(n).getStandardChemPotentials(DATA_PTR(m_mu0) + m_start[n]);
int nsp = thermo(n).nSpecies();
for (int k = 0; k < nsp; k++) {
m_StandardConc[ik] = thermo(n).standardConcentration(k);
ik++;
}
}
// m_deltaG0 will be used to pass electrochemical potentials
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_mu0), DATA_PTR(m_deltaG0));
for (int i = 0; i < m_ii; i++) {
m_ProdStanConcReac[i] = 1.0;
}
m_rxnstoich.multiplyReactants(DATA_PTR(m_StandardConc), DATA_PTR(m_ProdStanConcReac));
}
void Kinetics::finalize()
{
m_kk = 0;
for (size_t n = 0; n < nPhases(); n++) {
size_t nsp = m_thermo[n]->nSpecies();
m_kk += nsp;
}
}
void Kinetics::finalize() {
m_nTotalSpecies = 0;
int np = nPhases();
for (int n = 0; n < np; n++) {
int nsp = m_thermo[n]->nSpecies();
m_nTotalSpecies += nsp;
}
}
//====================================================================================================================
void InterfaceKinetics::_update_rates_phi() {
int np = nPhases();
for (int n = 0; n < np; n++) {
if (thermo(n).electricPotential() != m_phi[n]) {
m_phi[n] = thermo(n).electricPotential();
m_redo_rates = true;
}
}
}
void Kinetics::resizeSpecies()
{
m_kk = 0;
m_start.resize(nPhases());
for (size_t i = 0; i < m_thermo.size(); i++) {
m_start[i] = m_kk; // global index of first species of phase i
m_kk += m_thermo[i]->nSpecies();
}
invalidateCache();
}
/**
* For reactions that transfer charge across a potential difference,
* the activation energies are modified by the potential difference.
* (see, for example, ...). This method applies this correction.
*/
void InterfaceKinetics::applyButlerVolmerCorrection(doublereal* kf) {
int i;
int n, nsp, k, ik=0;
doublereal rt = GasConstant*thermo(0).temperature();
doublereal rrt = 1.0/rt;
int np = nPhases();
// compute the electrical potential energy of each species
for (n = 0; n < np; n++) {
nsp = thermo(n).nSpecies();
for (k = 0; k < nsp; k++) {
m_pot[ik] = Faraday*thermo(n).charge(k)*m_phi[n];
ik++;
}
}
// Compute the change in electrical potential energy for each
// reaction. This will only be non-zero if a potential
// difference is present.
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_pot),
DATA_PTR(m_rwork));
// Modify the reaction rates. Only modify those with a
// non-zero activation energy, and do not decrease the
// activation energy below zero.
doublereal eamod;
#ifdef DEBUG_MODE
double ea;
#endif
int nct = m_beta.size();
int irxn;
for (i = 0; i < nct; i++) {
irxn = m_ctrxn[i];
eamod = m_beta[i]*m_rwork[irxn];
if (eamod != 0.0 && m_E[irxn] != 0.0) {
#ifdef DEBUG_MODE
ea = GasConstant * m_E[irxn];
if (eamod + ea < 0.0) {
writelog("Warning: act energy mod too large!\n");
writelog(" Delta phi = "+fp2str(m_rwork[irxn]/Faraday)+"\n");
writelog(" Delta Ea = "+fp2str(eamod)+"\n");
writelog(" Ea = "+fp2str(ea)+"\n");
for (n = 0; n < np; n++) {
writelog("Phase "+int2str(n)+": phi = "
+fp2str(m_phi[n])+"\n");
}
}
#endif
kf[irxn] *= exp(-eamod*rrt);
}
}
}
/**
* Add a single reaction to the mechanism. This routine
* must be called after init() and before finalize().
* This function branches on the types of reactions allowed
* by the interfaceKinetics manager in order to install
* the reaction correctly in the manager.
* The manager allows the following reaction types
* Elementary
* Surface
* Global
* There is no difference between elementary and surface
* reactions.
*/
void InterfaceKinetics::addReaction(const ReactionData& r) {
/*
* Install the rate coefficient for the current reaction
* in the appropriate data structure.
*/
addElementaryReaction(r);
/*
* Add the reactants and products for m_ropnet;the current reaction
* to the various stoichiometric coefficient arrays.
*/
installReagents(r);
/*
* Save the reaction and product groups, which are
* part of the ReactionData class, in this class.
* They aren't used for anything but reaction path
* analysis.
*/
//installGroups(reactionNumber(), r.rgroups, r.pgroups);
/*
* Increase the internal number of reactions, m_ii, by one.
* increase the size of m_perturb by one as well.
*/
incrementRxnCount();
m_rxneqn.push_back(r.equation);
m_rxnPhaseIsReactant.resize(m_ii, 0);
m_rxnPhaseIsProduct.resize(m_ii, 0);
int np = nPhases();
int i = m_ii -1;
m_rxnPhaseIsReactant[i] = new bool[np];
m_rxnPhaseIsProduct[i] = new bool[np];
for (int p = 0; p < np; p++) {
m_rxnPhaseIsReactant[i][p] = false;
m_rxnPhaseIsProduct[i][p] = false;
}
const vector_int& vr = reactants(i);
for (int ik = 0; ik < (int) vr.size(); ik++) {
int k = vr[ik];
int p = speciesPhaseIndex(k);
m_rxnPhaseIsReactant[i][p] = true;
}
const vector_int& vp = products(i);
for (int ik = 0; ik < (int) vp.size(); ik++) {
int k = vp[ik];
int p = speciesPhaseIndex(k);
m_rxnPhaseIsProduct[i][p] = true;
}
}
/**
* Takes as input an array of properties for all species in the
* mechanism and copies those values beloning to a particular
* phase to the output array.
* @param data Input data array.
* @param phase Pointer to one of the phase objects participating
* in this reaction mechanism
* @param phase_data Output array where the values for the the
* specified phase are to be written.
*/
void Kinetics::selectPhase(const doublereal* data, const thermo_t* phase,
doublereal* phase_data) {
int n, nsp, np = nPhases();
for (n = 0; n < np; n++) {
if (phase == m_thermo[n]) {
nsp = phase->nSpecies();
copy(data + m_start[n],
data + m_start[n] + nsp, phase_data);
return;
}
}
throw CanteraError("Kinetics::selectPhase", "Phase not found.");
}
/**
* Prepare the class for the addition of reactions. This function
* must be called after instantiation of the class, but before
* any reactions are actually added to the mechanism.
* This function calculates m_kk the number of species in all
* phases participating in the reaction mechanism. We don't know
* m_kk previously, before all phases have been added.
*/
void InterfaceKinetics::init() {
int n;
m_kk = 0;
int np = nPhases();
for (n = 0; n < np; n++) {
m_kk += thermo(n).nSpecies();
}
m_rrxn.resize(m_kk);
m_prxn.resize(m_kk);
m_conc.resize(m_kk);
m_mu0.resize(m_kk);
m_grt.resize(m_kk);
m_pot.resize(m_kk, 0.0);
m_phi.resize(np, 0.0);
}
void Kinetics::addPhase(thermo_t& thermo)
{
// the phase with lowest dimensionality is assumed to be the
// phase/interface at which reactions take place
if (thermo.nDim() <= m_mindim) {
m_mindim = thermo.nDim();
m_rxnphase = nPhases();
}
// there should only be one surface phase
int ptype = -100;
if (type() == cEdgeKinetics) {
ptype = cEdge;
} else if (type() == cInterfaceKinetics) {
ptype = cSurf;
}
if (thermo.eosType() == ptype) {
m_surfphase = nPhases();
m_rxnphase = nPhases();
}
m_thermo.push_back(&thermo);
m_phaseindex[m_thermo.back()->id()] = nPhases();
resizeSpecies();
}
/*
* These values depend upon the concentration
* of the solution.
*
* units = J kmol-1 Kelvin-1
*
* @param deltaS vector of Enthalpy changes
* Length = m_ii, number of reactions
*
*/
void InterfaceKinetics::getDeltaEntropy(doublereal* deltaS) {
/*
* Get the partial molar entropy of all species in all of
* the phases
*/
int np = nPhases();
int n;
for (n = 0; n < np; n++) {
thermo(n).getPartialMolarEntropies(DATA_PTR(m_grt) + m_start[n]);
}
/*
* Use the stoichiometric manager to find deltaS for each
* reaction.
*/
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_grt), deltaS);
}
/*
* These values depend upon the concentration of the solution and
* the voltage of the phases
*
* units = J kmol-1
*
* @param deltaM Output vector of deltaM's for reactions
* Length: m_ii.
*/
void InterfaceKinetics::getDeltaElectrochemPotentials(doublereal* deltaM) {
/*
* Get the chemical potentials of the species in the
* ideal gas solution.
*/
int np = nPhases();
int n;
for (n = 0; n < np; n++) {
thermo(n).getElectrochemPotentials(DATA_PTR(m_grt) + m_start[n]);
}
/*
* Use the stoichiometric manager to find deltaG for each
* reaction.
*/
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_grt), deltaM);
}
/**
* Update properties that depend on concentrations. This method
* fills out the array of generalized concentrations by calling
* method getActivityConcentrations for each phase, which classes
* representing phases should overload to return the appropriate
* quantities.
*/
void InterfaceKinetics::_update_rates_C() {
int n;
int np = nPhases();
for (n = 0; n < np; n++) {
/*
* We call the getActivityConcentrations function of each
* ThermoPhase class that makes up this kinetics object to
* obtain the generalized concentrations for species within that
* class. This is collected in the vector m_conc. m_start[]
* are integer indecises for that vector denoting the start of the
* species for each phase.
*/
thermo(n).getActivityConcentrations(DATA_PTR(m_conc) + m_start[n]);
}
m_kdata->m_ROP_ok = false;
}
/**
*
* getDeltaSSGibbs():
*
* Return the vector of values for the reaction
* standard state gibbs free energy change.
* These values don't depend upon the concentration
* of the solution.
*
* units = J kmol-1
*/
void InterfaceKinetics::getDeltaSSGibbs(doublereal* deltaG) {
/*
* Get the standard state chemical potentials of the species.
* This is the array of chemical potentials at unit activity
* We define these here as the chemical potentials of the pure
* species at the temperature and pressure of the solution.
*/
int np = nPhases();
int n;
for (n = 0; n < np; n++) {
thermo(n).getStandardChemPotentials(DATA_PTR(m_grt) + m_start[n]);
}
/*
* Use the stoichiometric manager to find deltaG for each
* reaction.
*/
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_grt), deltaG);
}
/**
* Update the equilibrium constants in molar units for all
* reversible reactions. Irreversible reactions have their
* equilibrium constant set to zero.
* For reactions involving charged species the equilibrium
* constant is adjusted according to the electrostatis potential.
*/
void InterfaceKinetics::updateKc() {
int i, irxn;
vector_fp& m_rkc = m_kdata->m_rkcn;
fill(m_rkc.begin(), m_rkc.end(), 0.0);
//static vector_fp mu(nTotalSpecies());
if (m_nrev > 0) {
/*
* Get the vector of electrochemical potentials and store it in m_mu0
*/
int n, nsp, k, ik = 0;
doublereal rt = GasConstant*thermo(0).temperature();
doublereal rrt = 1.0 / rt;
int np = nPhases();
for (n = 0; n < np; n++) {
thermo(n).getStandardChemPotentials(DATA_PTR(m_mu0) + m_start[n]);
nsp = thermo(n).nSpecies();
for (k = 0; k < nsp; k++) {
m_mu0[ik] -= rt * thermo(n).logStandardConc(k);
m_mu0[ik] += Faraday * m_phi[n] * thermo(n).charge(k);
ik++;
}
}
// compute Delta mu^0 for all reversible reactions
m_rxnstoich.getRevReactionDelta(m_ii, DATA_PTR(m_mu0),
DATA_PTR(m_rkc));
for (i = 0; i < m_nrev; i++) {
irxn = m_revindex[i];
if (irxn < 0 || irxn >= nReactions()) {
throw CanteraError("InterfaceKinetics",
"illegal value: irxn = "+int2str(irxn));
}
m_rkc[irxn] = exp(m_rkc[irxn]*rrt);
}
for (i = 0; i != m_nirrev; ++i) {
m_rkc[ m_irrev[i] ] = 0.0;
}
}
}
/**
*
* getDeltaGibbs():
*
* Return the vector of values for the reaction gibbs free energy
* change
* These values depend upon the concentration
* of the ideal gas.
*
* units = J kmol-1
*/
void InterfaceKinetics::getDeltaGibbs(doublereal* deltaG) {
/*
* Get the chemical potentials of the species in the
* ideal gas solution.
*/
int np = nPhases();
int n;
for (n = 0; n < np; n++) {
thermo(n).getChemPotentials(DATA_PTR(m_grt) + m_start[n]);
}
//for (n = 0; n < m_grt.size(); n++) {
// cout << n << "G_RT = " << m_grt[n] << endl;
//}
/*
* Use the stoichiometric manager to find deltaG for each
* reaction.
*/
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_grt), deltaG);
}
void InterfaceKinetics::checkPartialEquil() {
int i, irxn;
vector_fp dmu(nTotalSpecies(), 0.0);
vector_fp rmu(nReactions(), 0.0);
vector_fp frop(nReactions(), 0.0);
vector_fp rrop(nReactions(), 0.0);
vector_fp netrop(nReactions(), 0.0);
if (m_nrev > 0) {
doublereal rt = GasConstant*thermo(0).temperature();
cout << "T = " << thermo(0).temperature() << " " << rt << endl;
int n, nsp, k, ik=0;
//doublereal rt = GasConstant*thermo(0).temperature();
// doublereal rrt = 1.0/rt;
int np = nPhases();
doublereal delta;
for (n = 0; n < np; n++) {
thermo(n).getChemPotentials(DATA_PTR(dmu) + m_start[n]);
nsp = thermo(n).nSpecies();
for (k = 0; k < nsp; k++) {
delta = Faraday * m_phi[n] * thermo(n).charge(k);
//cout << thermo(n).speciesName(k) << " " << (delta+dmu[ik])/rt << " " << dmu[ik]/rt << endl;
dmu[ik] += delta;
ik++;
}
}
// compute Delta mu^ for all reversible reactions
m_rxnstoich.getRevReactionDelta(m_ii, DATA_PTR(dmu), DATA_PTR(rmu));
getFwdRatesOfProgress(DATA_PTR(frop));
getRevRatesOfProgress(DATA_PTR(rrop));
getNetRatesOfProgress(DATA_PTR(netrop));
for (i = 0; i < m_nrev; i++) {
irxn = m_revindex[i];
cout << "Reaction " << reactionString(irxn)
<< " " << rmu[irxn]/rt << endl;
printf("%12.6e %12.6e %12.6e %12.6e \n",
frop[irxn], rrop[irxn], netrop[irxn],
netrop[irxn]/(frop[irxn] + rrop[irxn]));
}
}
}
/*********************************************************************
*
* getDeltaSSEntropy():
*
* Return the vector of values for the change in the
* standard state entropies for each reaction.
* These values don't depend upon the concentration
* of the solution.
*
* units = J kmol-1 Kelvin-1
*/
void InterfaceKinetics::getDeltaSSEntropy(doublereal* deltaS) {
/*
* Get the standard state entropy of the species.
* We define these here as the entropies of the pure
* species at the temperature and pressure of the solution.
*/
int np = nPhases();
int n;
for (n = 0; n < np; n++) {
thermo(n).getEntropy_R(DATA_PTR(m_grt) + m_start[n]);
}
doublereal R = GasConstant;
for (int k = 0; k < m_kk; k++) {
m_grt[k] *= R;
}
/*
* Use the stoichiometric manager to find deltaS for each
* reaction.
*/
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_grt), deltaS);
}
/**
*
* getDeltaSSEnthalpy():
*
* Return the vector of values for the change in the
* standard state enthalpies of reaction.
* These values don't depend upon the concentration
* of the solution.
*
* units = J kmol-1
*/
void InterfaceKinetics::getDeltaSSEnthalpy(doublereal* deltaH) {
/*
* Get the standard state enthalpies of the species.
* This is the array of chemical potentials at unit activity
* We define these here as the enthalpies of the pure
* species at the temperature and pressure of the solution.
*/
int np = nPhases();
int n;
for (n = 0; n < np; n++) {
thermo(n).getEnthalpy_RT(DATA_PTR(m_grt) + m_start[n]);
}
doublereal RT = thermo().temperature() * GasConstant;
for (int k = 0; k < m_kk; k++) {
m_grt[k] *= RT;
}
/*
* Use the stoichiometric manager to find deltaG for each
* reaction.
*/
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_grt), deltaH);
}
/*
* This is NOT a virtual function.
*
* @param right Reference to %Kinetics object to be copied into the
* current one.
*/
InterfaceKinetics& InterfaceKinetics::
operator=(const InterfaceKinetics &right) {
int i;
/*
* Check for self assignment.
*/
if (this == &right) return *this;
for (i = 0; i < m_ii; i++) {
delete [] m_rxnPhaseIsReactant[i];
delete [] m_rxnPhaseIsProduct[i];
}
Kinetics::operator=(right);
m_grt = right.m_grt;
m_kk = right.m_kk;
m_revindex = right.m_revindex;
m_rates = right.m_rates;
m_redo_rates = right.m_redo_rates;
m_index = right.m_index;
m_irrev = right.m_irrev;
m_rxnstoich = right.m_rxnstoich;
m_nirrev = right.m_nirrev;
m_nrev = right.m_nrev;
m_rrxn = right.m_rrxn;
m_prxn = right.m_prxn;
m_rxneqn = right.m_rxneqn;
*m_kdata = *right.m_kdata;
m_conc = right.m_conc;
m_mu0 = right.m_mu0;
m_phi = right.m_phi;
m_pot = right.m_pot;
m_rwork = right.m_rwork;
m_E = right.m_E;
m_surf = right.m_surf; //DANGER - shallow copy
m_integrator = right.m_integrator; //DANGER - shallow copy
m_beta = right.m_beta;
m_ctrxn = right.m_ctrxn;
m_ctrxn_ecdf = right.m_ctrxn_ecdf;
m_StandardConc = right.m_StandardConc;
m_deltaG0 = right.m_deltaG0;
m_ProdStanConcReac = right.m_ProdStanConcReac;
m_finalized = right.m_finalized;
m_has_coverage_dependence = right.m_has_coverage_dependence;
m_has_electrochem_rxns = right.m_has_electrochem_rxns;
m_has_exchange_current_density_formulation = right.m_has_exchange_current_density_formulation;
m_phaseExistsCheck = right.m_phaseExistsCheck;
m_phaseExists = right.m_phaseExists;
m_phaseIsStable = right.m_phaseIsStable;
m_rxnPhaseIsReactant.resize(m_ii, 0);
m_rxnPhaseIsProduct.resize(m_ii, 0);
int np = nPhases();
for (i = 0; i < m_ii; i++) {
m_rxnPhaseIsReactant[i] = new bool[np];
m_rxnPhaseIsProduct[i] = new bool[np];
for (int p = 0; p < np; p++) {
m_rxnPhaseIsReactant[i][p] = right.m_rxnPhaseIsReactant[i][p];
m_rxnPhaseIsProduct[i][p] = right.m_rxnPhaseIsProduct[i][p];
}
}
m_ioFlag = right.m_ioFlag;
return *this;
}
/*
* For reactions that transfer charge across a potential difference,
* the activation energies are modified by the potential difference.
* (see, for example, ...). This method applies this correction.
*
* @param kf Vector of forward reaction rate constants on which to have
* the correction applied
*/
void InterfaceKinetics::applyButlerVolmerCorrection(doublereal* const kf) {
int i;
int n, nsp, k, ik=0;
doublereal rt = GasConstant*thermo(0).temperature();
doublereal rrt = 1.0/rt;
int np = nPhases();
// compute the electrical potential energy of each species
for (n = 0; n < np; n++) {
nsp = thermo(n).nSpecies();
for (k = 0; k < nsp; k++) {
m_pot[ik] = Faraday*thermo(n).charge(k)*m_phi[n];
ik++;
}
}
// Compute the change in electrical potential energy for each
// reaction. This will only be non-zero if a potential
// difference is present.
m_rxnstoich.getReactionDelta(m_ii, DATA_PTR(m_pot), DATA_PTR(m_rwork));
// Modify the reaction rates. Only modify those with a
// non-zero activation energy. Below we decrease the
// activation energy below zero but in some debug modes
// we print out a warning message about this.
/*
* NOTE, there is some discussion about this point.
* Should we decrease the activiation energy below zero?
* I don't think this has been decided in any definative way.
* The treatment below is numerically more stable, however.
*/
doublereal eamod;
doublereal ecoeff;
#ifdef DEBUG_KIN_MODE
doublereal ea;
#endif
int nct = m_beta.size();
int irxn;
for (i = 0; i < nct; i++) {
irxn = m_ctrxn[i];
eamod = m_beta[i]*m_rwork[irxn];
// if (eamod != 0.0 && m_E[irxn] != 0.0) {
if (eamod != 0.0) {
#ifdef DEBUG_KIN_MODE
ea = GasConstant * m_E[irxn];
if (eamod + ea < 0.0) {
writelog("Warning: act energy mod too large!\n");
writelog(" Delta phi = "+fp2str(m_rwork[irxn]/Faraday)+"\n");
writelog(" Delta Ea = "+fp2str(eamod)+"\n");
writelog(" Ea = "+fp2str(ea)+"\n");
for (n = 0; n < np; n++) {
writelog("Phase "+int2str(n)+": phi = "
+fp2str(m_phi[n])+"\n");
}
}
#endif
/*
* Commonly, during electrochemistry problems the voltage may get out of sorts.
* Here, we seek to avoid producing inf results within Cantera by tempering the
* resulting rates of progress to ~10^150 or so. The ln calculation produces a
* small gradient pointing in the correct direction.
* (this would be a good place to pop a warning flag)
*/
ecoeff = -eamod*rrt;
if (ecoeff > 345.) {
ecoeff = 339.1565 + log(ecoeff);
} else if (ecoeff < -345.) {
ecoeff = -339.1565 - log(-ecoeff);
}
kf[irxn] *= exp(ecoeff);
}
}
}
/**
* Update the rates of progress of the reactions in the reaction
* mechanism. This routine operates on internal data.
*/
void InterfaceKinetics::updateROP() {
_update_rates_T();
_update_rates_C();
if (m_kdata->m_ROP_ok) return;
const vector_fp& rf = m_kdata->m_rfn;
const vector_fp& m_rkc = m_kdata->m_rkcn;
array_fp& ropf = m_kdata->m_ropf;
array_fp& ropr = m_kdata->m_ropr;
array_fp& ropnet = m_kdata->m_ropnet;
// copy rate coefficients into ropf
copy(rf.begin(), rf.end(), ropf.begin());
// multiply by perturbation factor
multiply_each(ropf.begin(), ropf.end(), m_perturb.begin());
// copy the forward rates to the reverse rates
copy(ropf.begin(), ropf.end(), ropr.begin());
// for reverse rates computed from thermochemistry, multiply
// the forward rates copied into m_ropr by the reciprocals of
// the equilibrium constants
multiply_each(ropr.begin(), ropr.end(), m_rkc.begin());
// multiply ropf by concentration products
m_rxnstoich.multiplyReactants(DATA_PTR(m_conc), DATA_PTR(ropf));
//m_reactantStoich.multiply(m_conc.begin(), ropf.begin());
// for reversible reactions, multiply ropr by concentration
// products
m_rxnstoich.multiplyRevProducts(DATA_PTR(m_conc),
DATA_PTR(ropr));
//m_revProductStoich.multiply(m_conc.begin(), ropr.begin());
// do global reactions
//m_globalReactantStoich.power(m_conc.begin(), ropf.begin());
for (int j = 0; j != m_ii; ++j) {
ropnet[j] = ropf[j] - ropr[j];
}
/*
* For reactions involving multiple phases, we must check that the phase
* being consumed actually exists. This is particularly important for
* phases that are stoichiometric phases containing one species with a unity activity
*/
if (m_phaseExistsCheck) {
for (int j = 0; j != m_ii; ++j) {
if ((ropr[j] > ropf[j]) && (ropr[j] > 0.0)) {
for (int p = 0; p < nPhases(); p++) {
if (m_rxnPhaseIsProduct[j][p]) {
if (! m_phaseExists[p]) {
ropnet[j] = 0.0;
ropr[j] = ropf[j];
if (ropf[j] > 0.0) {
for (int rp = 0; rp < nPhases(); rp++) {
if (m_rxnPhaseIsReactant[j][rp]) {
if (! m_phaseExists[rp]) {
ropnet[j] = 0.0;
ropr[j] = ropf[j] = 0.0;;
}
}
}
}
}
}
if (m_rxnPhaseIsReactant[j][p]) {
if (! m_phaseIsStable[p]) {
ropnet[j] = 0.0;
ropr[j] = ropf[j];
}
}
}
} else if ((ropf[j] > ropr[j]) && (ropf[j] > 0.0)) {
for (int p = 0; p < nPhases(); p++) {
if (m_rxnPhaseIsReactant[j][p]) {
if (! m_phaseExists[p]) {
ropnet[j] = 0.0;
ropf[j] = ropr[j];
if (ropf[j] > 0.0) {
for (int rp = 0; rp < nPhases(); rp++) {
if (m_rxnPhaseIsProduct[j][rp]) {
if (! m_phaseExists[rp]) {
ropnet[j] = 0.0;
ropf[j] = ropr[j] = 0.0;
}
}
}
}
}
}
if (m_rxnPhaseIsProduct[j][p]) {
if (! m_phaseIsStable[p]) {
ropnet[j] = 0.0;
ropf[j] = ropr[j];
}
}
}
}
}
}
m_kdata->m_ROP_ok = true;
}
void Kinetics::checkPhaseIndex(size_t m) const
{
if (m >= nPhases()) {
throw IndexError("checkPhaseIndex", "phase", m, nPhases()-1);
}
}
void Kinetics::checkPhaseArraySize(size_t mm) const
{
if (nPhases() > mm) {
throw ArraySizeError("checkPhaseArraySize", mm, nPhases());
}
}