Blender - Blender is the open source, cross platform suite of tools for 3D creation.
ANSYS Fluent - ANSYS engineering simulation and 3D design software delivers product modeling solutions with unmatched scalability and a comprehensive multiphysics foundation.
FreeCAD - An open-source parametric 3D modeler
Tableau Prep - Tableau Prep is comprised of two products: Prep Builder and Prep Conductor.
meshmixer - meshmixer is an experimental 3D modeling tool for making 3D mashups without too much hassle.
Autodesk Fluid Flow - Autodesk Fluid Flow is an industry-leading fluid dynamics software that helps to enhance product performance and reliability.