Thank you all.
So it appears there are various codes. I would think they would be tested against known data but has there been studies comparing it against each other? How much computing power would be necessary in running these code?
Are there any open source development in this area?
To what extent is computation used in nuclear reactor design? For example in aerospace CFD and FEM softwares are frequently used in the design process; the days of wind tunnel testing is limited to its absolute minimum. What are major softwares used in NE? Are there softwares such as NX, that...