An EnergyPlus shell for parametric studies and more ...
A set ot tools for surveyors addon to many CAD environments
CFDTool - Easy to Use Computational Fluid Dynamics (CFD) Toolbox
A package for Isogeometric Analysis in Octave and Matlab
Free 3D Mobile CAD
Software for electromagnetic simulation
Cuts 3D objects from polystyrene foam (EPS/XPS)
Precise gear geometry generator for spur and helical gears
very good CAD software
Solve Alignment of Road , Rail,Tunnel
A canvas library for generating technical drawings
Open source Matlab code for nonlinear isogeometric analysis
Stavařská nadstavba pro AutoCAD a IntelliCAD.