`Mixture`#

class ansys.chemkin.core.mixture.Mixture(chem: ansys.chemkin.core.chemistry.Chemistry)#: define a mixture based on the gas species in the given chemistry set.

Overview#

Methods

`list_composition`	List the mixture composition.
`find_equilibrium`	Create the equilibrium state mixture corresponding to mixture itself.
`hml`	Get enthalpy of the mixture.
`cpbl`	Get specific heat capacity of the mixture.
`rop`	Get species rate of productions.
`rxn_rates`	Get molar reaction rates.
`species_cp`	Get species specific heat capacity at constant pressure.
`species_h`	Get species enthalpy.
`species_visc`	Get species viscosity.
`species_cond`	Get species conductivity.
`species_diffusion_coeffs`	Get species diffusion coefficients.
`mixture_viscosity`	Get viscosity of the gas mixture.
`mixture_conductivity`	Get conductivity of the gas mixture.
`mixture_diffusion_coeffs`	Get mixture-averaged species diffusion coefficients of the gas mixture.
`mixture_binary_diffusion_coeffs`	Get multi-component species binary diffusion coefficients.
`mixture_thermal_diffusion_coeffs`	Get thermal diffusivity of the gas mixture.
`vol_hrr`	Get volumetric heat release rate.
`rop_mass`	Get species mass rates of production.
`list_rop`	List species molar production rate.
`list_rop_mass`	List species mass rate of production in descending order.
`list_reaction_rates`	List information about reaction rate in descending order.
`x_by_equivalence_ratio`	Set mole fractions using equivalence ratio.
`y_by_equivalence_ratio`	Set mass fractions using equivalence ratio.
`get_egr_mole_fraction`	Compute the EGR composition in mole fraction.
`validate`	Check whether the mixture is fully defined.
`use_realgas_cubic_eos`	Turn ON the real-gas cubic EOS.
`use_idealgas_law`	Turn on the ideal gas law to compute mixture properties.
`set_realgas_mixing_rule`	Set the mixing rule for calculating the real-gas mixture properties.

Properties

`chemid`	Get chemistry set index.
`kk`	Get the number of gas species.
`pressure`	Get gas mixture pressure [dynes/cm2].
`temperature`	Get gas mixture temperature.
`volume`	Get mixture volume.
`x`	Get mixture mole fraction.
`y`	Get mixture mass fraction.
`concentration`	Get mixture molar concentrations.
`eos`	Get the available real-gas EOS model that is provided in the mechanism.
`wt`	Get species molecular masses.
`wtm`	Get mean molar mass of the gas mixture.
`rho`	Get mixture mass density.

Attributes

`transport_data`
`userealgas`
`mole_fractions`
`mass_fractions`
`species_molar_weight`
`mean_molar_weight`

Static methods

`normalize`	Normalize the mixture composition.
`mean_molar_mass`	Get mean molar mass of the gas mixture.
`mole_fraction_to_mass_fraction`	Convert mole fraction to mass fraction.
`mass_fraction_to_mole_fraction`	Convert mass fraction to mole fraction.
`mass_fraction_to_concentration`	Convert mass fractions to molar concentrations.
`mole_fraction_to_concentration`	Convert mole fractions to molar concentrations.
`density`	Get mass density from the given mixture condition.
`mixture_specific_heat`	Get mixture specific heat capacity at constant pressure.
`mixture_enthalpy`	Get mixture enthalpy.
`rate_of_production`	Get species molar rate of production.
`reaction_rates`	Get the molar rates of the gas reactions.

Import detail#

from ansys.chemkin.core.mixture import Mixture

Property detail#

property Mixture.chemid: int#: Get chemistry set index.

property Mixture.kk: int#: Get the number of gas species.

property Mixture.pressure: float#: Get gas mixture pressure [dynes/cm2].

property Mixture.temperature: float#: Get gas mixture temperature.

property Mixture.volume: float#: Get mixture volume.

property Mixture.x: numpy.typing.NDArray[numpy.double]#: Get mixture mole fraction.

property Mixture.y: numpy.typing.NDArray[numpy.double]#: Get mixture mass fraction.

property Mixture.concentration: numpy.typing.NDArray[numpy.double]#: Get mixture molar concentrations.

property Mixture.eos: int#: Get the available real-gas EOS model that is provided in the mechanism.

property Mixture.wt: numpy.typing.NDArray[numpy.double]#: Get species molecular masses.

property Mixture.wtm: float#: Get mean molar mass of the gas mixture.

property Mixture.rho: float#: Get mixture mass density.

Attribute detail#

Mixture.transport_data#

Mixture.userealgas#

Mixture.mole_fractions#

Mixture.mass_fractions#

Mixture.species_molar_weight#

Mixture.mean_molar_weight#

Method detail#

static Mixture.normalize(frac: numpy.typing.ArrayLike) → tuple[int, numpy.typing.NDArray[numpy.double]]#: Normalize the mixture composition.

static Mixture.mean_molar_mass(frac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double], mode: str) → float#: Get mean molar mass of the gas mixture.

static Mixture.mole_fraction_to_mass_fraction(molefrac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double]) → numpy.typing.NDArray[numpy.double]#: Convert mole fraction to mass fraction.

static Mixture.mass_fraction_to_mole_fraction(massfrac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double]) → numpy.typing.NDArray[numpy.double]#: Convert mass fraction to mole fraction.

static Mixture.mass_fraction_to_concentration(chemid: int, p: float, t: float, massfrac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double]) → numpy.typing.NDArray[numpy.double]#: Convert mass fractions to molar concentrations.

static Mixture.mole_fraction_to_concentration(chemid: int, p: float, t: float, molefrac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double]) → numpy.typing.NDArray[numpy.double]#: Convert mole fractions to molar concentrations.

Mixture.list_composition(mode: str, option: str = ' ', bound: float = 0.0)#: List the mixture composition.

static Mixture.density(chemid: int, p: float, t: float, frac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double], mode: str) → float#: Get mass density from the given mixture condition.

static Mixture.mixture_specific_heat(chemid: int, p: float, t: float, frac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double], mode: str) → float#: Get mixture specific heat capacity at constant pressure.

static Mixture.mixture_enthalpy(chemid: int, p: float, t: float, frac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double], mode: str) → float#: Get mixture enthalpy.

static Mixture.rate_of_production(chemid: int, p: float, t: float, frac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double], mode: str) → numpy.typing.NDArray[numpy.double]#: Get species molar rate of production.

static Mixture.reaction_rates(chemid: int, numbreaction: int, p: float, t: float, frac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double], mode: str) → tuple[numpy.typing.NDArray[numpy.double], numpy.typing.NDArray[numpy.double]]#: Get the molar rates of the gas reactions.

Mixture.find_equilibrium()#: Create the equilibrium state mixture corresponding to mixture itself.

Mixture.hml() → float#: Get enthalpy of the mixture.

Mixture.cpbl() → float#: Get specific heat capacity of the mixture.

Mixture.rop() → numpy.typing.NDArray[numpy.double]#: Get species rate of productions.

Mixture.rxn_rates() → tuple[numpy.typing.NDArray[numpy.double], numpy.typing.NDArray[numpy.double]]#: Get molar reaction rates.

Mixture.species_cp() → numpy.typing.NDArray[numpy.double]#: Get species specific heat capacity at constant pressure.

Mixture.species_h() → numpy.typing.NDArray[numpy.double]#: Get species enthalpy.

Mixture.species_visc() → numpy.typing.NDArray[numpy.double]#: Get species viscosity.

Mixture.species_cond() → numpy.typing.NDArray[numpy.double]#: Get species conductivity.

Mixture.species_diffusion_coeffs() → numpy.typing.NDArray[numpy.double]#: Get species diffusion coefficients.

Mixture.mixture_viscosity() → float#: Get viscosity of the gas mixture.

Mixture.mixture_conductivity() → float#: Get conductivity of the gas mixture.

Mixture.mixture_diffusion_coeffs() → numpy.typing.NDArray[numpy.double]#: Get mixture-averaged species diffusion coefficients of the gas mixture.

Mixture.mixture_binary_diffusion_coeffs() → numpy.typing.NDArray[numpy.double]#: Get multi-component species binary diffusion coefficients.

Mixture.mixture_thermal_diffusion_coeffs() → numpy.typing.NDArray[numpy.double]#: Get thermal diffusivity of the gas mixture.

Mixture.vol_hrr() → float#: Get volumetric heat release rate.

Mixture.rop_mass() → numpy.typing.NDArray[numpy.double]#: Get species mass rates of production.

Mixture.list_rop(threshold: float = 0.0) → tuple[numpy.typing.NDArray[numpy.int32], numpy.typing.NDArray[numpy.double]]#: List species molar production rate.

Mixture.list_rop_mass(threshold: float = 0.0) → tuple[numpy.typing.NDArray[numpy.int32], numpy.typing.NDArray[numpy.double]]#: List species mass rate of production in descending order.

Mixture.list_reaction_rates(threshold: float = 0.0) → tuple[numpy.typing.NDArray[numpy.int32], numpy.typing.NDArray[numpy.double]]#: List information about reaction rate in descending order.

Mixture.x_by_equivalence_ratio(chemistryset: ansys.chemkin.core.chemistry.Chemistry, fuel_molefrac: numpy.typing.NDArray[numpy.double], oxid_molefrac: numpy.typing.NDArray[numpy.double], add_molefrac: numpy.typing.NDArray[numpy.double], products: list[str], equivalenceratio: float, threshold: float = 1e-10) → int#: Set mole fractions using equivalence ratio.

Mixture.y_by_equivalence_ratio(chemistryset: ansys.chemkin.core.chemistry.Chemistry, fuel_massfrac: numpy.typing.NDArray[numpy.double], oxid_massfrac: numpy.typing.NDArray[numpy.double], add_massfrac: numpy.typing.NDArray[numpy.double], products: list[str], equivalenceratio: float, threshold: float = 1e-10) → int#: Set mass fractions using equivalence ratio.

Mixture.get_egr_mole_fraction(egr_ratio: float, threshold: float = 1e-08) → numpy.typing.NDArray[numpy.double]#: Compute the EGR composition in mole fraction.

Mixture.validate() → int#: Check whether the mixture is fully defined.

Mixture.use_realgas_cubic_eos()#: Turn ON the real-gas cubic EOS.

Mixture.use_idealgas_law()#: Turn on the ideal gas law to compute mixture properties.

Mixture.set_realgas_mixing_rule(rule: int = 0)#: Set the mixing rule for calculating the real-gas mixture properties.

Mixture#

Overview#

Import detail#

Property detail#

Attribute detail#

Method detail#

`Mixture`#