Earth orbits and satellite coverage display in 3D on your laptop.
CFDTool - Easy to Use Computational Fluid Dynamics (CFD) Toolbox
A cross-platform statistical package for econometric analysis
System dynamics program with additional features for economics
Individual-based forward-time genetics simulation software
FEATool Multiphysics is an easy-to-use FEA and CFD Simulation Toolbox
Physically accurate and validated GPU ray-tracer
CAESAR-Lisflood landscape evolution model
Includes tools for performing electronic calculations.
VHDL Verification and Simulation Tool
A simulation program for thyroid homeostasis.
A simulation program for insulin-glucose homeostasis.
Discrete-event simulation modeling software for science and education
Data Exploration for Swift and other N-body simulation
Open-Source Multiphysics FEA (FEM) Package
turn-based wargame/simulator
tkinter wrapper for NASA CEA focused in rocket chemistry explanations
Matlab/Scilab-FEMM based GUI to Assist the Design of Permanent Magnet
OpenNum lets you distribute solvers with a nice graphical interface
AVR simulator IDE
Dedicated to computer-aided engineering Linux distribution
PySCeS Constraint Based Modelling
Biomolecular electrostatics software