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Ansys Fluent
Fluid Simulation Software

Ansys Fluent is the industry-leading fluid simulation software known for its advanced physics modeling capabilities and industry leading accuracy.


Ansys Fluent Helps Make Better, Faster Decisions Through Innovation

Ansys Fluent gives you more time to innovate and optimize product performance. Trust your simulation results with a software that has been extensively validated across a wide range of applications. With Ansys Fluent, you can create advanced physics models and analyze a variety of fluids phenomena—all in a customizable and intuitive space.

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    User-Friendly Interface
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    Single Window, Streamlined Workflow
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    Best-in-Class Physics Models
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    Parallel Capabilities for Meshing and Solving

Quick Specs

Accelerate your design cycle with this powerful fluid simulation software. Ansys Fluent contains the best-in class physics models and can accurately and efficiently solve large , complex models.

  • Task-Based Workflows
  • Turbulence Modeling
  • Single and Multiphase Flows
  • Reduced Order Models
  • Expressions
  • Acoustics
  • Combustion
  • Shape Optimization
  • Overset Mesh
  • Conjugate Heat Transfer
  • Fluid-Structure Interaction
  • HPC

JULY 2022

What's New

Ansys Fluent continues to make strides towards more efficient and sustainable computational fluid dynamics (CFD) simulations. This update includes significant advancements in GPU technology and open-source accessibility to increase productivity and reduce simulation time.

Aero workspace plane
Unleashing the Power of GPUs

Substantially reduce simulation solve time and total power consumption using the multi-GPU solver, with results showing 6 high-end GPUs ≈  2,000 CPUs. Transient flows including scale resolving simulations (SRS), non-conformal interfaces (NCI) and moving reference frames (MRF) are now supported.

Py Ansys logo
Democratizing Ansys Fluent

Automate processes, build custom workflows, craft customized solutions and more with PyFluent, the opensource access to Fluent via Python.

cross section of hydrogen simulation
Hydrogen Simulation from Production to Consumption

Accurately simulate the generation of green hydrogen through electrolysis with a new proton exchange membrane (PEM) model (beta) and consumption of hydrogen with validated combustion models for hydrogen and hydrogen blends.

multizone mesh of structures
Efficient Structured Meshing

Efficiently generate structured meshes using the new multizone feature in Fluent's watertight geometry workflow. Mutlizone operations also include swept meshes, separating zones and splitting cylinders.

heat transfer graphic of hypersonic vehicle
Improved Hypersonic Aerothermodynamics

Accurately predict heat transfer to hypersonic vehicle surfaces due to exothermic recombination reactions with a partially catalytic wall boundary condition. This accounts for recombination of atoms and improved prediction of species mixture compositions.

image of battery swelling
Accurate Battery Swelling

Accurately predict battery swelling during charging due to electrochemistry, pressure and swell-related material properties by coupling Fluent's battery and intrinsic fluid-structure interaction (FSI) models.


View all Applications
Gas Turbines

Gas Turbines

Ansys gas turbine simulation solution enables you to design and optimize the next generation of gas turbines.



Ansys simulation helps model the behavior of fluid flow as aircraft travel above hypersonic speed, including strong shocks, plasma, and structural deformation.



Les outils de simulation de mélange de fluides Ansys vous aident à modéliser le processus de mélange et le mélange d'un ou plusieurs matériaux fluides.

Échangeurs thermiques

Échangeurs thermiques

Ansys permet d'optimiser la conception des échangeurs thermiques en matière d'efficacité énergétique, de sélection des matériaux et de prévision de la durée de vie dans des conditions de fonctionnement très difficiles.

Conception d'éoliennes


Simulation complète d'éoliennes : cela allant du logiciel embarqué à l'implantation, et de la maintenance prédictive aux jumeaux numériques.

Simulation de batterie

Simulation de batterie

Les solutions de simulation et de modélisation de batterie Ansys s'appuient sur des multiphysiques afin de vous aider à maximiser les performances et la sécurité des batteries tout en réduisant les coûts et les temps de test.

Machines tournantes

Machines tournantes

La simulation de machines tournantes Ansys vous aide à améliorer vos conceptions de ventilateurs, de pompes et de compresseurs en accroissant l'efficacité, la sécurité ainsi que la durabilité.

Systèmes gaz-liquide

Systèmes gaz-liquide

Découvrez comment la simulation multiphysique d'Ansys vous permet d'optimiser efficacement les équipements de processus gaz-liquide afin de maximiser le rendement et d'améliorer l'efficacité.

Moteurs électriques

Moteurs électriques

Le logiciel de conception de moteurs électriques Ansys permet de passer de la conception à l'analyse électromagnétique, thermique et mécanique détaillée des moteurs électriques.

Ansys Fluent generates accurate and reliable fluid simulation results

Ansys Fluent unlocks new potentials for CFD analysis.  A fluid simulation software with fast pre-processing and faster solve times to help you be the fastest to break into the market. Fluent’s industry leading features enable limitless innovation, while never making a compromise on accuracy.



Key Features

Explore the best fluid simulation tools on the market in an efficient, customizable workspace

  • Streamlined Workflows
  • Battery Modeling
  • Electric Motor Cooling
  • Turbulence Modeling
  • Multiphase Flows
  • Combustion Models

Accelerate your pre- and post-processing with streamlined workflows for meshing and application setups.

Fluent has customizable, task-based workflows for pre-processing to help accelerate the process of generating a high-quality CFD-ready mesh. These workflows are for both clean and dirty CAD. Application workflows are streamlined to help reduce the amount of clicks and panels a user has to deal with. These workflows include multiphase modeling, batteries, shape optimization, aerodynamics and more.

Advance your battery design and safety with rapid, accurate simulation. Electrochemistry can be used for age and life prediction. Battery thermal management and runaway can be simulated to ensure top performance and safety. A reduced order model (ROM) can be created by extracting key thermal characteristics to analyze temperature in seconds.

Electric motor cooling is critical as you move to higher power, high-efficiency equipment. Fluent can be used to find the appropriate cooling mechanism for an electric motor. Optimize this method, whether it's natural, water or spray cooled, to ensure motor efficiency is not impacted and magnets are not damaged.

A wide range of turbulence models are available to choose the right model for your application. Fluent offers a wide range of turbulence models including the industry-leading Generalized k-ω (GEKO) model. GEKO is a revolutionary concept with tunable coefficients that can be adjusted to different flow regimes.

Accurately simulate multiphase flows including gas-liquid, liquid-liquid, gas-solid, particle flows and even DEM. Different modeling approaches are needed as you move from single to multiphase flow applications, and Ansys understands this. To help accurately predict these challenging flows, we offer a wide range of models for gas, liquid, solid, particle flows and even DEM to get you the most accurate results.

Accurate combustion models allow you to gain insight into system performance and flow phenomena.

Assuring you have accurate combustion is critical for the precise mix of turbulence, chemistry and the interaction between them. Fluent offers accurate and validated reacting flow models for your combustion applications.

Accurately predict interactions between fluids and solids from pressure and/or thermal loads. Solve your fluid-structure interaction challenge to make sure your product is safe, reliable and optimized. Fluent can solve FSI problems standalone and couples with Ansys Mechanical for the most complex simulations.


Technical Papers

Technical Paper
Ansys Webinar
Best Practice: Generalized k-⍵ Two-Equation Turbulence Model in Ansys CFD (GEKO)D

Ansys developed a new turbulence model family called Generalize k-w (GEKO) model with the goal of turbulence model consolidation. GEKO is a two-equation model, based on the k-w model formulation, but with the flexibility to tune the model over a wide range of flow scenarios.

Technical Paper
Ansys webinar
Best Practice: Scale-Resolving Simulations in Ansys CFD

This report is intended as an addition to the code-specific Theory and User Documentation available for both Ansys Fluent and Ansys CFX. That documentation describes in detail how to select and activate these models, so that information is not repeated here. 

Technical Paper
Best Practice: RANS Turbulence Modeling in Ansys CFD

The goal of this paper is to guide a user through the process of optimal RANS model selection within the Ansys CFD codes, especially Ansys Fluent and Ansys CFX.


Ansys software is accessible

It's vital to Ansys that all users, including those with disabilities, can access our products. As such, we endeavor to follow accessibility requirements based on the US Access Board (Section 508), Web Content Accessibility Guidelines (WCAG), and the current format of the Voluntary Product Accessibility Template (VPAT).

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