The `mixture.py` module#

Summary#

Classes

define a mixture based on the gas species in the given chemistry set.

Functions

`verify_mixture`	Verify the Mixture is valid and active.
`isothermal_mixing`	Mixing multiple gas mixtures at gioven temperature.
`adiabatic_mixing`	Mixing multiple gas mixtures adiabatically.
`cal_mixture_temperature_from_enthalpy`	Compute the mixture temperature from the given mixture enthalpy.
`create_mixture_recipe_from_fractions`	Build a PyChemkin mixture recipe/formula from a species fraction array.
`calculate_stoichiometrics`	Calculate the stoichiometric coefficients.
`species_diffusion_velocity`	Compute species diffusive velocities between two gas mixtures.
`mixing_by_exchange_with_the_mean`	Mix two mixtures of the same mass using the IEM model.
`calculate_mass_weighted_mean_mixture`	Calculate the mass-weighted mean mixture from a list of mixtures.
`interpolate_mixtures`	Get Mixture by interpolation.
`compare_mixtures`	Compare properties of mixture B against those of mixture A.
`calculate_equilibrium`	Get the equilibrium mixture composition.
`equilibrium`	Find the equilibrium state mixture corresponding to the given mixture.
`detonation`	Find the Chapman-Jouguet state mixture and detonation wave speed.

Chemkin Mixture utilities.

mixture.verify_mixture(this_mixture: Mixture) → bool#: Verify the Mixture is valid and active.

mixture.isothermal_mixing(recipe: list[tuple[Mixture, float]], mode: str, finaltemperature: float) → Mixture#: Mixing multiple gas mixtures at gioven temperature.

mixture.adiabatic_mixing(recipe: list[tuple[Mixture, float]], mode: str) → Mixture#: Mixing multiple gas mixtures adiabatically.

mixture.cal_mixture_temperature_from_enthalpy(mixture: Mixture, h_mixture: float, guesstemperature: float = 0.0) → int#: Compute the mixture temperature from the given mixture enthalpy.

mixture.create_mixture_recipe_from_fractions(chemistry_set: ansys.chemkin.core.chemistry.Chemistry, frac: numpy.typing.NDArray[numpy.double]) → tuple[int, list[tuple[str, float]]]#: Build a PyChemkin mixture recipe/formula from a species fraction array.

mixture.calculate_stoichiometrics(chemistryset: ansys.chemkin.core.chemistry.Chemistry, fuel_molefrac: numpy.typing.NDArray[numpy.double], oxid_molefrac: numpy.typing.NDArray[numpy.double], prod_index: numpy.typing.NDArray[numpy.int32]) → tuple[float, numpy.typing.NDArray[numpy.double]]#: Calculate the stoichiometric coefficients.

mixture.species_diffusion_velocity(mixture_a: Mixture, mixture_b: Mixture, mode: str = 'mix', tdiff: bool = True) → numpy.typing.NDArray[numpy.double]#: Compute species diffusive velocities between two gas mixtures.

mixture.mixing_by_exchange_with_the_mean(mixture_a: Mixture, mixture_b: Mixture, mix_time: float, mix_param: float, tau: float) → tuple[Mixture, Mixture]#: Mix two mixtures of the same mass using the IEM model.

mixture.calculate_mass_weighted_mean_mixture(mixtures: list[Mixture], masses: list[float] | None = None) → Mixture#: Calculate the mass-weighted mean mixture from a list of mixtures.

mixture.interpolate_mixtures(mixtureleft: Mixture, mixtureright: Mixture, ratio: float) → Mixture#: Get Mixture by interpolation.

mixture.compare_mixtures(mixture_a: Mixture, mixture_b: Mixture, atol: float = 1e-10, rtol: float = 0.001, mode: str = 'mass') → tuple[bool, float, float]#: Compare properties of mixture B against those of mixture A.

mixture.calculate_equilibrium(chemid: int, p: float, t: float, frac: numpy.typing.NDArray[numpy.double], wt: numpy.typing.NDArray[numpy.double], mode_in: str, mode_out: str, eq_option: int = 1, use_realgas: int = 0) → tuple[list[float], numpy.typing.NDArray[numpy.double]]#: Get the equilibrium mixture composition.

mixture.equilibrium(mixture: Mixture, opt: int = 1) → Mixture#: Find the equilibrium state mixture corresponding to the given mixture.

mixture.detonation(mixture: Mixture) → tuple[list[float], Mixture]#: Find the Chapman-Jouguet state mixture and detonation wave speed.