CAELinux
Dedicated to computer-aided engineering Linux distribution
... environment for scientific computing & mathematical modeling.
A special focus of CAELinux is to provide simplified interfaces to facilitate the use of specialized open source software while providing high performance parallel multiphysics solvers ready to use for more advanced users.
Try CAELinux or carry it with you on a USB stick in a live environment or install it to turn your PC into a full fledged Ubuntu based CAE workstation. It's all up to you what you can do with it!