SimWorks is described as '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'. There are more than 10 alternatives to SimWorks for a variety of platforms, including Windows, Linux, Mac, Online / Web-based and GNU Octave. The best alternative is OpenFOAM, which is both free and Open Source. Other great apps like SimWorks are SimScale (Paid), KRATOS Multiphysics (Free, Open Source), COMSOL Multiphysics (Paid) and CFDTool (Freemium).
Kratos Multiphysics (A.K.A Kratos) is a framework for building parallel multi-disciplinary simulation software. Modularity, extensibility and HPC are the main objectives. Kratos has BSD license and is written in C++ with extensive Python interface.
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. Based on FEATool Multiphysics™ (...
ANSYS Fluent software contains the broad physical modeling capabilities needed to model flow, turbulence, heat transfer, and reactions for industrial applications ranging from air flow over an aircraft wing to combustion in a furnace, from bubble columns to oil platforms, from...
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.
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.
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.
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.