COLLOQUIUM

Monday, February 14, 2005

"State of the Art Modeling in U.S. Severe Accident Codes and Future Challenges"

Presented By

Severe accident code development has been an ongoing process for over three decades, and a variety of analysis tools are currently available to evaluate light water reactor behavior. These codes have been created by developers from a variety of backgrounds and with different goals.

Based on knowledge obtained from experimental programs, considerable progress has been made in severe accident code development. However, many phenomena are not yet sufficiently modeled and the advent of new nuclear reactor designs introduces additional conditions and geometries that are currently not modeled. This paper discusses recent progress in U.S. severe accident code development, challenges that lie ahead and efforts to meet the demands placed on the codes.