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Free ANSYS Fluent Alternatives

The best free alternative to ANSYS Fluent is OpenFOAM, which is also Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to ANSYS Fluent and 14 is free so hopefully you can find a suitable replacement. Other interesting free alternatives to ANSYS Fluent are Elmer, CFDTool, FEATool Multiphysics and FEATFLOW.

This page was last updated Oct 5, 2020
  • Windows

ANSYS Fluent software contains the broad physical modeling capabilities needed to model flow, turbulence, heat transfer,...

Learn more about ANSYS Fluent

  1. OpenFOAM

    • FreeOpen Source
    • Mac
    • Windows
    • Linux

    OpenFOAM is the leading free, open source software for CFD, owned by the OpenFOAM Foundation and distributed exclusively under the General Public Licence (GPL).

    OpenFOAM vs ANSYS Fluent opinions
    Almost everyone thinks OpenFOAM is a great alternative to ANSYS Fluent.

    most powerful alternative but unfortunately it has a steep learning curve and is time consuming to work with even after learning. it will be the best if it has a graphical user interface (GUI).

    Positive comment over 2 years ago
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  2. Elmer

    • FreeOpen Source
    • Mac
    • Windows
    • Linux

    Elmer is an open source multiphysical simulation software mainly developed by CSC - IT Center for Science (CSC). Elmer development was started 1995 in collaboration with Finnish Universities, research institutes and industry.



  3. CFDTool

    • FreemiumProprietary
    • Mac
    • Windows
    • Linux

    CFDTool™ (https://www.cfdtool.com) is a fully integrated and dedicated MATLAB® Computational Fluid Dynamics (CFD) Toolbox for modeling and simulation of fluid flows with coupled heat transfer.

  4. FEATool Multiphysics

    • Free PersonalProprietary
    • Mac
    • Windows
    • Linux
    • GNU Octave
    • MATLAB

    FEATool Multiphysics is a fully integrated Finite Element FEM CAE simulation toolbox for Matlab. With FEATool you can easily model and simulate heat transfer, fluid flow CFD, structural mechanics, chemical reactions, general PDEs, and more.

  5. FEATFLOW

    • FreeOpen Source
    • Mac
    • Windows
    • Linux

    The program package FEATFLOW is both a user oriented as well as a general purpose subroutine system for the numerical solution of the incompressible Navier-Stokes equations in two and three space dimensions.



  6. Code_Aster for Windows

    • FreeOpen Source
    • Windows

    Code_Aster is a free software for numerical simulation in structural mechanics. It is a general software for simulation in mechanics and calculation of structures.

  7. CONSELF

    • FreemiumProprietary
    • Online

    CFD - Laminar or turbulent fluid dynamics models can be selected depending on the fluid flow Reynolds number. Both steady-state and transient solvers are available. Rotating, single and multiphase flows can be analyzed.

  8. SimulationHub

    • FreeProprietary
    • Online

    Cloud-based CFD solution.

  9. SimWorks

    • FreeProprietary
    • Windows

    SimWorks is a free CFD software built upon established open-source simulation tools integrated into an intuitive GUI. It supports the entire CFD simulation process: CAD import, pre-processing, meshing, running and fully integrated post-processing.

  10. QuickerSim CFD Toolbox for MATLAB®

    • FreemiumProprietary
    • Windows
    • Linux

    Powerful application for performing fluid flow and heat transfer simulations in MATLAB ® making CFD analysis more accessible than ever. Our Toolbox is compatible with other MATLAB® toolboxes and external software.

Showing 10 of 14 alternatives