Introduction to SU2

SU2, Multiphysics Simulation and Design Software

Using the Documentation

What's New

Changes in Version 8

Guide to Version v7

Quick Start

Installation

Software Components

SU2 on Linux/MacOS

Build From Source

Build SU2 on Linux/MacOS

Build SU2 on Windows

Running Unit Tests

Theory

Governing Equations in SU2

Streamwise Periodicity

Thermochemical Nonequilibrium

Users Guide

Configuration File

Physical Definition

Markers and Boundary Conditions

Convective Schemes

Slope Limiters and Shock Resolution

History and Solution Output

Linear Solvers and Preconditioners

Basics of Multi-Zone Computations

Aeroacoustic analysis of unsteady pressure

Flamelet Solver — Python Wrapper Wall Boundary Conditions

Output Fields Reference

Physical Models

Turbulence Models

Transition Models

Hybrid RANS/LES (DES)

Wall Treatment: Wall Functions and Roughness

Case Setup Guides

Setup Guide: Steady RANS for External Aerodynamics

Setup Guide: Incompressible Flows

Setup Guide: Unsteady Flows and DES

Setup Guide: Laminar-Turbulent Transition

Setup Guide: Turbomachinery

Setup Guide: Heat Transfer and Conjugate Heat Transfer

Setup Guide: Species Transport and Combustion

Setup Guide: Shape Optimization with the Discrete Adjoint

Setup Guide: Non-Ideal Compressible Flows

Option Reference

Option Reference

Problem Definition

Data-driven fluid model parameters

Freestream Conditions

Reference Conditions

Boundary Markers

Linear solver definition

Spatial Discretization

Adjoint and Gradient

Sobolev Gradient Solver Parameters

Input/output files and formats

Dynamic mesh definition

Aeroelastic Simulation (Typical Section Model)

Equivalent Area

Grid deformation

Deformable mesh

FEM flow solver definition

Multizone definition

Radiation solver

Visualize Control Volumes

Inverse design problem

Unsupported options

FFD point inversion

Automatic Differentation options

Hybrid_RANSLES Options

Renamed and Removed Options

Developer Docs

GIT-ting Started

Developing SU2 on GitHub (Internal Developers)

Running Regression Tests

Advanced AD Techniques

Containers for Development

Writing Unit Tests

Integrating Tracy Profiler with SU2

Automatic Differentiation (AD)

Code Reference (Doxygen)

Documentation Improvements and Status

How to Add...

Adding a Config Option

Adding Output Fields

Adding a Boundary Condition

Adding a Numerical Scheme

Adding a Fluid Model

Adding a Turbulence Model

Adding a Transition Model

Adding a Solver

FAQ

Troubleshooting

Contact

Unsupported options

Generated from SU2 commit 6b54b78464 on 2026-10-23. Do not edit this page. Edit the comment above the option in Common/src/CConfig.cpp instead.

EXTRA_OUTPUT

Write extra output (EXPERIMENTAL, NOT FOR GENERAL USE)

Type: YES / NO
Default: NO
In config_template.cfg: EXTRA_OUTPUT= NO
Code: CConfig.cpp line 2946

EXTRA_HEAT_ZONE_OUTPUT

Write extra heat output for a given heat solver zone

Type: integer
Default: -1
In config_template.cfg: EXTRA_HEAT_ZONE_OUTPUT= -1
Code: CConfig.cpp line 2949

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