prometheus_equilibrium.propellants

Prometheus propellant ingredient and formulation database.

Usage:

from prometheus_equilibrium.propellants import PropellantDatabase, PropellantMixture

prop_db = PropellantDatabase(
    "prometheus/propellants/propellants.toml",
    species_db=db,   # loaded SpeciesDatabase
)
prop_db.load()

# Named formulation from TOML
mixture = prop_db.expand("LOX_LH2_OF6")

# Custom O/F ratio (mass amounts, any consistent unit)
mixture = prop_db.mix([("LOX", 6.0), ("LH2", 1.0)])

# Use with EquilibriumProblem
from prometheus_equilibrium.equilibrium.problem import EquilibriumProblem, ProblemType
problem = EquilibriumProblem(
    reactants=mixture.reactants,
    products=db.get_species(mixture.elements),
    problem_type=ProblemType.HP,
    constraint1=mixture.enthalpy,
    constraint2=pressure_pa,
)

Modules

• prometheus_equilibrium.propellants.loader