EMPHASIS(TM)/Nevada Unstructured FEM Implementation Version 2.1.1.

Technical Report · Fri Aug 01 00:00:00 EDT 2014

DOI:https://doi.org/10.2172/1150207· OSTI ID:1150207

Turner, C. David; Pointon, Timothy D.; Cartwright, Keith

EMPHASIS TM /NEVADA is the SIERRA/NEVADA toolkit implementation of portions of the EMP HASIS TM code suite. The purpose of the toolkit i m- plementation is to facilitate coupling to other physics drivers such as radi a- tion transport as well as to better manage code design, implementation, co m- plexity, and important verification and validation processes. This document describes the theory and implementation of the unstructured finite - element method solver , associated algorithms, and selected verification and valid a- tion . Acknowledgement The author would like to recognize all of the ALEGRA team members for their gracious and willing support through this initial Nevada toolkit - implementation process. Although much of the knowledge needed was gleaned from document a- tion and code context, they were always willing to consult personally on some of the less obvious issues and enhancements necessary.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1150207
• Report Number(s): SAND2014-16737; 534618
• Country of Publication: United States
• Language: English