ANSYS Fluent
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| ANSYS Fluent | |
|---|---|
| Name | ANSYS Fluent |
| Developer | ANSYS Inc. |
| Released | 1980s |
| Operating system | Microsoft Windows, Linux |
| Genre | Computational fluid dynamics |
| License | Commercial |
ANSYS Fluent is a commercial computational fluid dynamics (CFD) software package used for simulating fluid flow, heat transfer, chemical reactions, and multiphase phenomena. It is developed by ANSYS Inc. and deployed across industries ranging from aerospace and automotive to energy and biomedical engineering. The software integrates mesh generation, solvers, and post-processing tools to model complex systems in both research and industrial environments.
Overview
Fluent originated from efforts in the 1980s to create robust finite-volume method-based solvers and became part of ANSYS through corporate development alongside competitors like CFX and firms such as MSC Software and Siemens Digital Industries Software. Its user base includes organizations such as Boeing, General Motors, NASA, Siemens, and Shell plc, and it competes with packages including OpenFOAM, Star-CCM+, and COMSOL Multiphysics. Fluent is employed in academic settings at institutions like Massachusetts Institute of Technology, Stanford University, Imperial College London, and ETH Zurich for courses and research in aeroacoustics, combustion, and turbomachinery.
Features and Capabilities
Fluent provides a breadth of capabilities for simulating laminar and turbulent flows, conjugate heat transfer, and reacting flows. It supports structured, unstructured, and hybrid meshes produced by tools such as ANSYS Meshing, Gambit (software), and third-party meshers used by General Electric and Rolls-Royce Holdings. The user interface integrates with ANSYS Workbench and supports scripting via Python (programming language) and Scheme for automation. Post-processing integrates with visualization tools like ParaView, Tecplot, and ANSYS EnSight to analyze aerodynamic loads, thermal fields, and scalar distributions for clients such as Airbus, Ford Motor Company, and Toyota.
Numerical Methods and Models
Fluent implements finite-volume discretization for the Navier–Stokes equations and offers turbulence closures including Reynolds-Averaged Navier–Stokes (RANS) models such as the k–ε model, k–ω model, and Reynolds Stress Models used in studies by Prandtl-inspired institutes. Large Eddy Simulation (LES) and Detached Eddy Simulation (DES) capabilities support transient analysis for projects at facilities like CERN and NASA Jet Propulsion Laboratory. Multiphase modeling uses approaches such as the Volume of Fluid (VOF) method, Eulerian multiphase frameworks, and Lagrangian discrete phase models applied in work by BP and ExxonMobil. Combustion modeling includes premixed, partially premixed, and non-premixed schemes with detailed chemical kinetics via mechanisms developed by groups like Sandia National Laboratories and Lawrence Livermore National Laboratory.
Typical Applications
Fluent is used extensively in aerospace for predicting lift, drag, and flutter in programs at Lockheed Martin and in rotorcraft analysis relevant to Bell Helicopter. In automotive engineering, it aids aerodynamic optimization and thermal management in programs at Daimler AG, Volkswagen, and BMW. In energy, Fluent supports combustion chamber design and heat exchanger simulations for Siemens Energy, GE Power, and Schlumberger. Biomedical applications include blood flow modeling and respiratory simulations for projects associated with Mayo Clinic, Cleveland Clinic, and Johns Hopkins University. Environmental and civil engineering uses include dispersion studies for United Nations Environment Programme projects and wind engineering analyses for structures by Arup.
Software Development and Versions
Fluent's development has followed industry trends in high-performance computing, with parallelization on distributed-memory clusters and GPU acceleration to scale analyses run by research centers such as Los Alamos National Laboratory and Argonne National Laboratory. Major releases have added modules for advanced combustion, multiphase coupling, and acoustics; corporate milestones involve mergers and acquisitions in the software industry with companies like ANSYS, Inc. expanding its platform alongside competitors including Dassault Systèmes and Hexagon AB. Academic collaborations and benchmark studies often cite versioned validation against experimental datasets from facilities such as NASA Langley Research Center and Prandtl Laboratories.
Licensing and Integration
Fluent is distributed under commercial licenses from ANSYS Inc., with licensing models that include node-locked, floating, and cloud-based entitlements used by enterprises like Microsoft and Amazon Web Services for elastic compute. Integration with product lifecycle and systems engineering tools—such as Siemens Teamcenter, PTC Windchill, and Autodesk platforms—supports multidisciplinary workflows in corporations like BASF and Procter & Gamble. Training, certification, and consulting are provided by ANSYS and authorized partners, and academic licensing programs facilitate use at universities including University of Cambridge and California Institute of Technology.