CFDTool - Easy to Use Computational Fluid Dynamics (CFD) Toolbox
FEATool Multiphysics is an easy-to-use FEA and CFD Simulation Toolbox
Python GUI tool for estimating plant CAPEX, OPEX, and profitability
Python script for calculation of deflection of elastic ropes.
Cross-platform Open-source 2D CAD
OpenNum lets you distribute solvers with a nice graphical interface
A designer’s program for describing parts of the building
EuroNCAP Grid Point Calculator
Cuts 3D objects from polystyrene foam (EPS/XPS)