nasa/cea
View on GitHubCEA computes the equilibrium composition of mixtures via free-energy minimization, and uses the resulting product concentrations to determine thermodynamic and transport properties. It includes a large database of species with thermodynamic curve-fit data, and can be used for rocket performance, detonation parameters, and shock-wave analysis.
- Stars
- 191
- Forks
- 36
- Open beginner issues
- 0
- Indexed issues
- 15
- Avg merge
- 6d 13h
- Merged PRs (30d)
- 18
- Dominant language
- Fortran
- License
- Apache-2.0
- Last GitHub push
- Sep 14, 2026
- Latest indexed
- Sep 19, 2026
- Contributing guide
- Contributing guide
- Code of conduct
- No code of conduct
- Beginner labels
- No beginner labels indexed
-
Difficulty 2/5 1-3 hours Newbie friendliness 88/100
-
Difficulty 4/5 3-5 days Newbie friendliness 68/100
-
enhancement
Difficulty 4/5 3-5 days Newbie friendliness 55/100
-
[bug] ADN entry in thermo.inp uses batch mass/enthalpy (630 g, -683.6 kJ) instead of per-mole values Open
Difficulty 1/5 1-3 hours Newbie friendliness 94/100
-
bug
-
enhancement
Difficulty 4/5 3-5 days Newbie friendliness 55/100
-
enhancement
Difficulty 5/5 Over a week Newbie friendliness 28/100
-
enhancement
Difficulty 4/5 3-5 days Newbie friendliness 45/100
-
enhancement
Difficulty 5/5 Over a week Newbie friendliness 30/100
-
bug
-
bug
-
[bug] Unrecognized unit strings are silently mishandled instead of failing (two related locations) Openbug
-
enhancement
Difficulty 5/5 Over a week Newbie friendliness 45/100
-
enhancement
-
enhancement
Difficulty 2/5 1-3 hours Newbie friendliness 35/100