Equation Of State Python Packages

thermo

Thermodynamics and Phase Equilibrium component of Chemical Engineering Design Library (ChEDL)

neqsim

NeqSim is a library for calculation of fluid behavior, phase equilibrium and process simulation. This project is a Python interface to NeqSim.

pythermomodels

Python Thermodynamic Models

watereos

Thermodynamic equations of state for supercooled water

feos

FeOs - A Framework for Equations of State and Classical Density Functional Theory

compactobject-tov

An open-source package for neutron star whole workflow Bayesian inference constraining Neutron star EOS package

co2-eos

Differentiable CO₂ thermodynamic properties in JAX. Pure-JAX Span-Wagner equation of state — JIT-compiled, vmappable, and fully differentiable via jax.grad. Phase-aware solvers robust through the critical point. Allows GPU speedup over CoolProp for CO₂.

tovextravaganza

Python toolkit for solving TOV equations, calculating tidal deformability, and exploring neutron star properties for gravitational wave and nuclear astrophysics research

pyforfluids

PyForFluids: Fluids Properties Based on Equations of State

despasito

DESPASITO: Determining Equilibrium State and Parametrization Application for SAFT, Intended for Thermodynamic Output

rgfrosh

A frozen shock solver for ideal and real gas equations of state.