# su2code/SU2

SU2: An Open-Source Suite for Multiphysics Simulation and Design

Repository: https://github.com/su2code/SU2
Canonical: https://ross.abutalabs.com/products/su2
Homepage: https://su2code.github.io
Language: C++
License: NOASSERTION
License Family: other
Topics: cfd, c-plus-plus, simulation, optimization, python, opensource, physics, flow, fluid, fluid-dynamics, hpc
Last push: 2026-08-26T19:34:54+00:00

## Health v2 (maintenance only)
Score: 84/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 57, longevity 100
- inputs: {"age_days": 4814, "days_push": 7, "days_rel": 128, "gap_med": 125.5, "n_releases_24m": 5}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1784, forks 996 (observed 2026-08-28T04:05:35.967494+00:00)

## What it is
SU2 is an open-source C++ suite for numerically solving partial differential equations and performing PDE-constrained optimization, primarily for computational fluid dynamics and aerodynamic shape optimization. It supports multiphysics problems including compressible and incompressible flows, electrodynamics, and chemically reacting flows, with discrete adjoint capabilities and HPC support.

## Use cases
- simulate airflow over aircraft wings with CFD
- run aerodynamic shape optimization with adjoint gradients
- solve compressible and incompressible Navier-Stokes equations
- model chemically reacting flows
- run multiphysics PDE simulations on HPC clusters
- study non-ideal compressible fluid dynamics

## When to choose
- you need a free, open-source alternative to proprietary CFD codes
- you need gradient-based shape optimization via discrete adjoints
- you want an extensible PDE solver for research in fluid dynamics
- you need MPI-parallel CFD on clusters

## When to avoid
- you need a GUI-driven commercial CFD workflow with meshing and post-processing built in
- your problem is outside PDE-based multiphysics (e.g., discrete-event simulation)
- you need extensive vendor support and certification for industrial safety analysis

## Facets
- artifact type: application
- maturity: active
- function: simulation, math, gpu-computing
- domain: simulation
- platform: windows, cpp, python, cross-platform
- tags: cfd, computational-fluid-dynamics, aerodynamics, shape-optimization, multiphysics, pde-solver, adjoint-methods, hpc, finite-volume, open-source, algorithms, engineering, physics, linux, macos

## Member repositories
- su2code/SU2 (main) score 84

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:35.967494+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:24:16.792859+00:00, confidence not recorded.
  - readme: https://github.com/su2code/SU2 (fetched 2026-08-28T04:05:35.967494+00:00, sha 0dd4de972572)
  - homepage: https://su2code.github.io (fetched 2026-08-29T11:02:44.957499+00:00, sha 47ca645062b8)
- Data as of 2026-08-30T08:39:29.467469+00:00.