View source for Free and open-source computer-aided design/Simulation and analysis

[[Image:Newton cradle.jpg|right|180px]]
[[Image:FEA.jpg|right|180px]]
Modules for analysing and testing how objects should behave in the real world.

* {{wp|Finite_element_analysis|Finite element analysis}} - for detailed analysis of effects such as stress, strain, thermal transfer and electromagnetism
* {{wp|Computational_fluid_dynamics|Computational fluid dynamics}}
* {{wp|Physics_engine|Physics engine}} - for more simplistic but 'realtime' simulation and user interaction, such as gravity, friction and collision detection
** {{wp|Kinematics|Kinematics}} - models motion of moving parts
** {{wp|Dynamics_%28mechanics%29|Dynamics}} - models motion and forces of moving parts