Code_Aster for Windows is described as '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'. There are more than 10 alternatives to Code_Aster for Windows for Windows, Linux, Mac, GNU Octave and MATLAB. The best alternative is Elmer, which is both free and Open Source. Other great apps like Code_Aster for Windows are COMSOL Multiphysics (Paid), KRATOS Multiphysics (Free, Open Source), ANSYS Fluent (Paid) and SimFlow (Paid).
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.
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.
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.
Calculix is a free and open-source finite-element analysis application that uses an input format similar to Abaqus. It has an implicit and explicit solver written by Guido Dhondt and a pre- and post-processor written by Klaus Wittig.
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.