Cantera
3.1.0a1
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Class MultiTransport implements multicomponent transport properties for ideal gas mixtures. More...
#include <MultiTransport.h>
Class MultiTransport implements multicomponent transport properties for ideal gas mixtures.
The implementation generally follows the procedure outlined in Kee, et al. [15].
Definition at line 25 of file MultiTransport.h.
Public Member Functions | |
MultiTransport ()=default | |
default constructor More... | |
string | transportModel () const override |
Identifies the model represented by this Transport object. More... | |
void | getThermalDiffCoeffs (double *const dt) override |
Return the thermal diffusion coefficients (kg/m/s) More... | |
double | thermalConductivity () override |
Returns the mixture thermal conductivity in W/m/K. More... | |
void | getMultiDiffCoeffs (const size_t ld, double *const d) override |
Return the Multicomponent diffusion coefficients. Units: [m^2/s]. More... | |
void | getSpeciesFluxes (size_t ndim, const double *const grad_T, size_t ldx, const double *const grad_X, size_t ldf, double *const fluxes) override |
Get the species diffusive mass fluxes wrt to the mass averaged velocity, given the gradients in mole fraction and temperature. More... | |
void | getMolarFluxes (const double *const state1, const double *const state2, const double delta, double *const fluxes) override |
Get the molar diffusional fluxes [kmol/m^2/s] of the species, given the thermodynamic state at two nearby points. More... | |
void | getMassFluxes (const double *state1, const double *state2, double delta, double *fluxes) override |
Get the mass diffusional fluxes [kg/m^2/s] of the species, given the thermodynamic state at two nearby points. More... | |
void | init (ThermoPhase *thermo, int mode=0, int log_level=0) override |
Initialize a transport manager. More... | |
Public Member Functions inherited from GasTransport | |
double | viscosity () override |
Viscosity of the mixture (kg /m /s) More... | |
void | getSpeciesViscosities (double *const visc) override |
Get the pure-species viscosities. More... | |
void | getBinaryDiffCoeffs (const size_t ld, double *const d) override |
Returns the matrix of binary diffusion coefficients. More... | |
void | getMixDiffCoeffs (double *const d) override |
Returns the Mixture-averaged diffusion coefficients [m^2/s]. More... | |
void | getMixDiffCoeffsMole (double *const d) override |
Returns the mixture-averaged diffusion coefficients [m^2/s]. More... | |
void | getMixDiffCoeffsMass (double *const d) override |
Returns the mixture-averaged diffusion coefficients [m^2/s]. More... | |
void | getViscosityPolynomial (size_t i, double *coeffs) const override |
Return the polynomial fits to the viscosity of species i. More... | |
void | getConductivityPolynomial (size_t i, double *coeffs) const override |
Return the temperature fits of the heat conductivity of species i. More... | |
void | getBinDiffusivityPolynomial (size_t i, size_t j, double *coeffs) const override |
Return the polynomial fits to the binary diffusivity of species pair (i, j) More... | |
void | getCollisionIntegralPolynomial (size_t i, size_t j, double *astar_coeffs, double *bstar_coeffs, double *cstar_coeffs) const override |
Return the polynomial fits to the collision integral of species pair (i, j) More... | |
void | setViscosityPolynomial (size_t i, double *coeffs) override |
Modify the polynomial fits to the viscosity of species i. More... | |
void | setConductivityPolynomial (size_t i, double *coeffs) override |
Modify the temperature fits of the heat conductivity of species i. More... | |
void | setBinDiffusivityPolynomial (size_t i, size_t j, double *coeffs) override |
Modify the polynomial fits to the binary diffusivity of species pair (i, j) More... | |
void | setCollisionIntegralPolynomial (size_t i, size_t j, double *astar_coeffs, double *bstar_coeffs, double *cstar_coeffs, bool actualT) override |
Modify the polynomial fits to the collision integral of species pair (i, j) More... | |
bool | CKMode () const override |
Boolean indicating the form of the transport properties polynomial fits. More... | |
Public Member Functions inherited from Transport | |
Transport ()=default | |
Constructor. More... | |
Transport (const Transport &)=delete | |
Transport & | operator= (const Transport &)=delete |
ThermoPhase & | thermo () |
Phase object. More... | |
void | checkSpeciesIndex (size_t k) const |
Check that the specified species index is in range. More... | |
void | checkSpeciesArraySize (size_t kk) const |
Check that an array size is at least nSpecies(). More... | |
AnyMap | parameters () const |
Return the parameters for a phase definition which are needed to reconstruct an identical object using the newTransport function. More... | |
virtual double | bulkViscosity () |
The bulk viscosity in Pa-s. More... | |
virtual double | electricalConductivity () |
The electrical conductivity (Siemens/m). More... | |
virtual void | getMobilities (double *const mobil_e) |
Get the Electrical mobilities (m^2/V/s). More... | |
Protected Member Functions | |
void | update_T () override |
Update basic temperature-dependent quantities if the temperature has changed. More... | |
void | update_C () override |
Update basic concentration-dependent quantities if the concentrations have changed. More... | |
void | updateThermal_T () |
Update the temperature-dependent terms needed to compute the thermal conductivity and thermal diffusion coefficients. More... | |
void | eval_L0000 (const double *const x) |
Evaluate the L0000 matrices. More... | |
void | eval_L0010 (const double *const x) |
Evaluate the L0010 matrices. More... | |
void | eval_L1000 () |
Evaluate the L1000 matrices. More... | |
void | eval_L0100 () |
void | eval_L0001 () |
void | eval_L1010 (const double *x) |
void | eval_L1001 (const double *x) |
void | eval_L0110 () |
void | eval_L0101 (const double *x) |
bool | hasInternalModes (size_t j) |
double | pressure_ig () |
virtual void | solveLMatrixEquation () |
Protected Member Functions inherited from GasTransport | |
virtual void | updateViscosity_T () |
Update the temperature-dependent viscosity terms. More... | |
virtual void | updateSpeciesViscosities () |
Update the pure-species viscosities. More... | |
virtual void | updateDiff_T () |
Update the binary diffusion coefficients. More... | |
virtual void | setupCollisionParameters () |
Setup parameters for a new kinetic-theory-based transport manager for low-density gases. More... | |
void | setupCollisionIntegral () |
Setup range for polynomial fits to collision integrals of Monchick & Mason [27]. More... | |
void | getTransportData () |
Read the transport database. More... | |
void | makePolarCorrections (size_t i, size_t j, double &f_eps, double &f_sigma) |
Corrections for polar-nonpolar binary diffusion coefficients. More... | |
void | fitCollisionIntegrals (MMCollisionInt &integrals) |
Generate polynomial fits to collision integrals. More... | |
virtual void | fitProperties (MMCollisionInt &integrals) |
Generate polynomial fits to the viscosity \( \eta \) and conductivity \( \lambda \). More... | |
virtual void | fitDiffCoeffs (MMCollisionInt &integrals) |
Generate polynomial fits to the binary diffusion coefficients. More... | |
void | getBinDiffCorrection (double t, MMCollisionInt &integrals, size_t k, size_t j, double xk, double xj, double &fkj, double &fjk) |
Second-order correction to the binary diffusion coefficients. More... | |
Protected Attributes | |
double | m_thermal_tlast |
DenseMatrix | m_astar |
Dense matrix for astar. More... | |
DenseMatrix | m_bstar |
Dense matrix for bstar. More... | |
DenseMatrix | m_cstar |
Dense matrix for cstar. More... | |
vector< double > | m_cinternal |
vector< double > | m_sqrt_eps_k |
DenseMatrix | m_log_eps_k |
vector< double > | m_frot_298 |
vector< double > | m_rotrelax |
double | m_lambda |
DenseMatrix | m_Lmatrix |
DenseMatrix | m_aa |
vector< double > | m_a |
vector< double > | m_b |
vector< double > | m_spwork1 |
vector< double > | m_spwork2 |
vector< double > | m_spwork3 |
vector< double > | m_molefracs_last |
Mole fraction vector from last L-matrix evaluation. More... | |
bool | m_l0000_ok |
Boolean indicating viscosity is up to date. More... | |
bool | m_lmatrix_soln_ok |
bool | m_debug |
Protected Attributes inherited from GasTransport | |
vector< double > | m_molefracs |
Vector of species mole fractions. More... | |
double | m_viscmix = 0.0 |
Internal storage for the viscosity of the mixture (kg /m /s) More... | |
bool | m_visc_ok = false |
Update boolean for mixture rule for the mixture viscosity. More... | |
bool | m_viscwt_ok = false |
Update boolean for the weighting factors for the mixture viscosity. More... | |
bool | m_spvisc_ok = false |
Update boolean for the species viscosities. More... | |
bool | m_bindiff_ok = false |
Update boolean for the binary diffusivities at unit pressure. More... | |
int | m_mode = 0 |
Type of the polynomial fits to temperature. More... | |
DenseMatrix | m_phi |
m_phi is a Viscosity Weighting Function. size = m_nsp * n_nsp More... | |
vector< double > | m_spwork |
work space length = m_kk More... | |
vector< double > | m_visc |
vector of species viscosities (kg /m /s). More... | |
vector< vector< double > > | m_visccoeffs |
Polynomial fits to the viscosity of each species. More... | |
vector< double > | m_mw |
Local copy of the species molecular weights. More... | |
DenseMatrix | m_wratjk |
Holds square roots of molecular weight ratios. More... | |
DenseMatrix | m_wratkj1 |
Holds square roots of molecular weight ratios. More... | |
vector< double > | m_sqvisc |
vector of square root of species viscosities sqrt(kg /m /s). More... | |
vector< double > | m_polytempvec |
Powers of the ln temperature, up to fourth order. More... | |
double | m_temp = -1.0 |
Current value of the temperature at which the properties in this object are calculated (Kelvin). More... | |
double | m_kbt = 0.0 |
Current value of Boltzmann constant times the temperature (Joules) More... | |
double | m_sqrt_t = 0.0 |
current value of temperature to 1/2 power More... | |
double | m_logt = 0.0 |
Current value of the log of the temperature. More... | |
double | m_t14 = 0.0 |
Current value of temperature to 1/4 power. More... | |
vector< vector< double > > | m_diffcoeffs |
Polynomial fits to the binary diffusivity of each species. More... | |
DenseMatrix | m_bdiff |
Matrix of binary diffusion coefficients at the reference pressure and the current temperature Size is nsp x nsp. More... | |
vector< vector< double > > | m_condcoeffs |
temperature fits of the heat conduction More... | |
vector< vector< int > > | m_poly |
Indices for the (i,j) interaction in collision integral fits. More... | |
vector< vector< double > > | m_omega22_poly |
Fit for omega22 collision integral. More... | |
vector< vector< int > > | m_star_poly_uses_actualT |
Flag to indicate for which (i,j) interaction pairs the actual temperature is used instead of the reduced temperature. More... | |
vector< vector< double > > | m_astar_poly |
Fit for astar collision integral. More... | |
vector< vector< double > > | m_bstar_poly |
Fit for bstar collision integral. More... | |
vector< vector< double > > | m_cstar_poly |
Fit for cstar collision integral. More... | |
vector< double > | m_zrot |
Rotational relaxation number for each species. More... | |
vector< double > | m_crot |
Dimensionless rotational heat capacity of each species. More... | |
vector< bool > | m_polar |
Vector of booleans indicating whether a species is a polar molecule. More... | |
vector< double > | m_alpha |
Polarizability of each species in the phase. More... | |
vector< double > | m_eps |
Lennard-Jones well-depth of the species in the current phase. More... | |
vector< double > | m_sigma |
Lennard-Jones diameter of the species in the current phase. More... | |
DenseMatrix | m_reducedMass |
This is the reduced mass of the interaction between species i and j. More... | |
DenseMatrix | m_diam |
hard-sphere diameter for (i,j) collision More... | |
DenseMatrix | m_epsilon |
The effective well depth for (i,j) collisions. More... | |
DenseMatrix | m_dipole |
The effective dipole moment for (i,j) collisions. More... | |
DenseMatrix | m_delta |
Reduced dipole moment of the interaction between two species. More... | |
vector< double > | m_w_ac |
Pitzer acentric factor. More... | |
vector< double > | m_disp |
Dispersion coefficient. More... | |
vector< double > | m_quad_polar |
Quadrupole polarizability. More... | |
int | m_log_level = 0 |
Level of verbose printing during initialization. More... | |
Protected Attributes inherited from Transport | |
ThermoPhase * | m_thermo |
pointer to the object representing the phase More... | |
size_t | m_nsp = 0 |
Number of species. More... | |
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default |
default constructor
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inlineoverridevirtual |
Identifies the model represented by this Transport object.
Each derived class should override this method to return a meaningful identifier.
Reimplemented from Transport.
Definition at line 31 of file MultiTransport.h.
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overridevirtual |
Return the thermal diffusion coefficients (kg/m/s)
Eqn. (12.126) of Kee et al. [15] displays how they are calculated. The reference work is from Dixon-Lewis [6].
Eqns. (12.168) of Kee et al. [15] shows how they are used in an expression for the species flux.
dt | Vector of thermal diffusion coefficients. Units = kg/m/s |
Reimplemented from Transport.
Definition at line 94 of file MultiTransport.cpp.
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overridevirtual |
Returns the mixture thermal conductivity in W/m/K.
Units are in W / m K or equivalently kg m / s3 K
Reimplemented from Transport.
Definition at line 84 of file MultiTransport.cpp.
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overridevirtual |
Return the Multicomponent diffusion coefficients. Units: [m^2/s].
If the transport manager implements a multicomponent diffusion model, then this method returns the array of multicomponent diffusion coefficients. Otherwise it throws an exception.
[in] | ld | The dimension of the inner loop of d (usually equal to m_nsp) |
[out] | d | flat vector of diffusion coefficients, fortran ordering. d[ld*j+i] is the D_ij diffusion coefficient (the diffusion coefficient for species i due to concentration gradients in species j). Units: m^2/s |
Reimplemented from Transport.
Definition at line 350 of file MultiTransport.cpp.
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overridevirtual |
Get the species diffusive mass fluxes wrt to the mass averaged velocity, given the gradients in mole fraction and temperature.
Units for the returned fluxes are kg m-2 s-1.
ndim | Number of dimensions in the flux expressions |
grad_T | Gradient of the temperature (length = ndim) |
ldx | Leading dimension of the grad_X array. (usually equal to m_nsp but not always) |
grad_X | Gradients of the mole fraction. Flat vector with the m_nsp in the inner loop. length = ldx * ndim |
ldf | Leading dimension of the fluxes array. (usually equal to m_nsp but not always) |
fluxes | Output of the diffusive mass fluxes. Flat vector with the m_nsp in the inner loop. length = ldx * ndim |
Reimplemented from Transport.
Definition at line 165 of file MultiTransport.cpp.
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overridevirtual |
Get the molar diffusional fluxes [kmol/m^2/s] of the species, given the thermodynamic state at two nearby points.
The molar diffusional fluxes are calculated with reference to the mass averaged velocity. This is a one-dimensional vector
state1 | Array of temperature, density, and mass fractions for state 1. |
state2 | Array of temperature, density, and mass fractions for state 2. |
delta | Distance from state 1 to state 2 (m). |
fluxes | Output molar fluxes of the species. (length = m_nsp) |
Reimplemented from Transport.
Definition at line 339 of file MultiTransport.cpp.
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overridevirtual |
Get the mass diffusional fluxes [kg/m^2/s] of the species, given the thermodynamic state at two nearby points.
The specific diffusional fluxes are calculated with reference to the mass averaged velocity. This is a one-dimensional vector
state1 | Array of temperature, density, and mass fractions for state 1. |
state2 | Array of temperature, density, and mass fractions for state 2. |
delta | Distance from state 1 to state 2 (m). |
fluxes | Output mass fluxes of the species. (length = m_nsp) |
Reimplemented from Transport.
Definition at line 251 of file MultiTransport.cpp.
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overridevirtual |
Initialize a transport manager.
This routine sets up a transport manager. It calculates the collision integrals and populates species-dependent data structures.
thermo | Pointer to the ThermoPhase object |
mode | Chemkin compatible mode or not. This alters the specification of the collision integrals. defaults to no. |
log_level | Defaults to zero, no logging |
Reimplemented from GasTransport.
Definition at line 37 of file MultiTransport.cpp.
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overrideprotectedvirtual |
Update basic temperature-dependent quantities if the temperature has changed.
Reimplemented from GasTransport.
Definition at line 388 of file MultiTransport.cpp.
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overrideprotectedvirtual |
Update basic concentration-dependent quantities if the concentrations have changed.
Implements GasTransport.
Definition at line 400 of file MultiTransport.cpp.
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protected |
Update the temperature-dependent terms needed to compute the thermal conductivity and thermal diffusion coefficients.
Definition at line 417 of file MultiTransport.cpp.
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protected |
Evaluate the L0000 matrices.
Evaluate the upper-left block of the L matrix.
x | vector of species mole fractions |
Definition at line 483 of file MultiTransport.cpp.
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Evaluate the L0010 matrices.
x | vector of species mole fractions |
Definition at line 505 of file MultiTransport.cpp.
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Evaluate the L1000 matrices.
Definition at line 525 of file MultiTransport.cpp.
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Dense matrix for astar.
Definition at line 121 of file MultiTransport.h.
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Dense matrix for bstar.
Definition at line 124 of file MultiTransport.h.
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Dense matrix for cstar.
Definition at line 127 of file MultiTransport.h.
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Mole fraction vector from last L-matrix evaluation.
Definition at line 148 of file MultiTransport.h.
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Boolean indicating viscosity is up to date.
Definition at line 151 of file MultiTransport.h.