Apps similar to ANSYS Fluent include FEATool Multiphysics, which has a free version. Other options are COMSOL Multiphysics, Elmer, dicehub and OpenFOAM. You're spoiled for choice with CAD Software like ANSYS Fluent: we list more than 25 alternatives for Windows, Linux, Mac and the web.
FEATool Multiphysics is a fully integrated physics modeling and engineering simulation environment, featuring built-in CAD and geometry tools, pre-processing and grid generation, solvers, post-processing and visualization.
COMSOL Multiphysics is an engineering, design, and finite element analysis software environment for the modeling and simulation of any physics-based system.
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.
Finland
EU
dicehub is a cloud-based SaaS offering on-demand fluid dynamics simulations. It features an intuitive, browser-based interface with capabilities for real-time collaboration and high-performance computing, streamlining complex simulation workflows without setup fees or licensing...
GermanyEU
OpenFOAM is the leading free, open source software for CFD, owned by the OpenFOAM Foundation and distributed exclusively under the General Public Licence (GPL). The GPL gives users the freedom to modify and redistribute the software and a guarantee of continued free use, within...
United Kingdom
SimScale offers a software that allows you to perform CFD, FEA, and Thermal simulations to your CAD model in the cloud without needing high-performance computing power.
GermanyEU
SimFlow is a powerful CFD software, focused on engineering and science. It combines an intuitive user interface with the advantages of the open-source OpenFOAM® libraries in something more than a compact OpenFoam® GUI.
PolandEU
Code_Saturne solves the Navier-Stokes equations for 2D, 2D-axisymmetric and 3D flows, steady or unsteady, laminar or turbulent, incompressible or weakly dilatable, isothermal or not, with scalars transport if required.
The ANSYS Workbench platform is the backbone for delivering a comprehensive and integrated simulation system to our customers. Using Workbench for your product development simulations will result in higher productivity from integrated applications leveraging common and...
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.
XFlow is a next generation CFD software system that uses a proprietary state-of-the-art Lattice Boltzmann technology, and is specifically designed for companies which require accurate feedback on flow simulation, transient aerodynamics, water management and fluid-structure...
Spain