DWSIM - an open-source CAPE-OPEN compliant chemical process simulator.
EFDC Explorer - open-source for processing of the Environmental Fluid Dynamics Code (EFDC).
Elmer - an open-source multiphysical simulation software for Windows/Mac/Linux.
FlightGear- a free, open-source atmospheric and orbital flight simulator with a flight dynamics engine (JSBSim) that is used in a 2015 NASA benchmark[1] to judge new simulation code to space industry standards.
FreeFem++ - Free, open-source, multiphysics Finite Element Analysis (FEA) software.
Freemat - a free environment for rapid engineering, scientific prototyping and data processing using the same language as MATLAB and GNU Octave.
Gekko - simulation software in Python with machine learning and optimization
GNU Octave - an open-source mathematical modeling and simulation software very similar to using the same language as MATLAB and Freemat.
JaamSim is an open-source Java-based discrete-event simulation environment.
JModelica.org is a free and open source software platform based on the Modelica modeling language.
Meep - an open source package for electromagnetic simulation with finite-difference time-domain (FDTD) method
Mobility Testbed - an open-source multi-agent simulation testbed for transport coordination algorithms.
MPB - an open source package for electromagnetic band diagram analysis of periodic structures such as photonic crystals
Simantics System Dynamics – used for modelling and simulating large hierarchical models with multidimensional variables created in a traditional way with stock and flow diagrams and causal loop diagrams.
SimPy - an open-source discrete-event simulation package based on Python.
CircuitLogix - an electronics simulation software developed by Logic Design Inc.
COMSOL Multiphysics - a predominantly finite element analysis, solver and simulation software package for various physics and engineering applications, especially coupled phenomena, or multi-physics.
CONSELF - browser based CFD and FEA simulation platform.
DX Studio - a suite of tools for simulation and visualization.
Dymola - modeling and simulation software based on the Modelica language.
MATLAB - a programming, modeling and simulation tool developed by MathWorks.
Mathematica - a computational software program based on symbolic mathematics, developed by Wolfram Research.
Micro Saint Sharp - a general purpose discrete event software tool using a graphical flowchart approach and on the C# language, developed by Alion Science and Technology.
ModelCenter - a framework for integration of third-party modeling and simulation tools/scripts, workflow automation, and multidisciplinary design analysis and optimization from Phoenix Integration.
NEi Nastran - software for engineering simulation of stress, dynamics, and heat transfer in structures.
NI Multisim - an electronic schematic capture and simulation program.
Simcad Pro - Process simulation software with On-The-Fly model changes while the simulation is running. Lean analysis, VR, and physics. Developed by CreateASoft, Inc. Chicago USA
SIMUL8 - software for discrete event or process based simulation.
Simulations Plus - modeling and simulation software for pharmaceutical research
SimulationX - modeling and simulation software based on the Modelica language.
Simulink - a tool for block diagrams, electrical mechanical systems and machines from MathWorks.
SRM Engine Suite - engineering tool used for simulating fuels, combustion and exhaust gas emissions in IC engine applications.
STELLA - system dynamics and discrete event modeling software for business strategy, public policy, and education. Developed by isee systems.
TRNSYS - software for dynamic simulation of renewable energy systems, HVAC systems, building energy use and both passive and active solar systems.
UNIGINE - real-time 3D visualization SDK for simulation and training. Supports C++ and C# programming languages.
Unreal Engine - immersive virtual-reality training simulation software.
Vensim - system dynamics and continuous simulation software for business and public policy applications.
VisSim - system simulation and optional C-code generation of electrical, process, control, bio-medical, mechanical and UML State chart systems.
Vortex (software) - a complete simulation platform featuring a realtime physics engine for rigid body dynamics, an image generator, desktop tools (Editor and Player) and more. Also available as Vortex Studio Essentials, a limited free version.
Visual Components - a 3D factory simulation software for manufacturing applications including layout planning, production simulation, off-line programming and PLC verification.
VisualSim Architect – an electronic system-level software for modeling and simulation of electronic systems, embedded software and semiconductors.
VSim - a multiphysics simulation software tool designed to run computationally intensive electromagnetic, electrostatic, and plasma simulations.
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