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Advancing Understanding of Fission Gas Behavior in Nuclear Fuel through Leadership Class Computing

Project Summary

The objective of this project is to develop high-performance simulation tools capable of predicting fission gas bubble evolution in nuclear fuel, and to demonstrate a Scientific Discovery through Advanced Computing (SciDAC) partnership project between the Department of Energy (DOE) Office of Advanced Scientific Computing Research (ASCR) and the Office of Nuclear Energy (NE). Deployment of such tools will require the utilization of high performance computing resources and the development of a leadership-class computational code capable of spanning the multiple length and time scales needed to address the complex physical and computational challenges associated with accurately modeling nuclear fuel.

This pilot project has a duration of 18 months (2016-08-15/2018-02-14).


 InstitutionPrincipal InvestigatorAdditional Participants

Barry Smith (

Shashi Aithal

 INLGiovanni Pastore ( 
LANLBlas UberuagaDavid Andersson, Li-Ta "Ollie" Lo, Danny Perez
ORNLDavid E. Bernholdt (

Valmor F. de Almeida, Ozgur Cekmer, David Pugmire, Philip C. Roth

PNNLRick Kurtz ( Roche, Wahyu Setyawan
U Tennessee - Knoxville*Brian D. Wirth* (

Sophie Blondel, Bamin Khomami, Aaron Kohnert

* Lead Institution and Lead Principal Investigator


This project is part of the Scientific Discovery through Advanced Computing (SciDAC) program, and is jointly sponsored by the Fusion Energy Sciences (FES) and Advanced Scientific Computing Research (ASCR) programs within the U.S. Department of Energy Office of Science.

Key Partners


Program or SponsorProjectPSI Point(s) of ContactPartner Point(s) of Contact
SciDAC InstitutesFASTMath – Frameworks, Algorithms, and Scalable Technologies for MathematicsBarry Smith (ANL), Vijay Mahadevan (ANL) 
 QUEST – Quantification of Uncertainty in Extreme Scale Computations

David Higdon (LANL)
Sham Bhat (LANL)

Omar Knio (Duke), Habib Najm (SNL)
 SUPER – Institute for Sustained Performance, Energy and ResiliencePhil Roth (ORNL) 
 SDAV—Scalable Data Management, Analysis and VisualizationJim Ahrens (LANL), Jeremy Meredith (ORNL) 
DOE Fusion Energy Sciences Plasma-Surface Interactions Science CenterBrian Wirth (ORNL/UTK)

Donghua Xu, Zhangcan "Eric" Yang

International Atomic Energy Agency

IAEA Coordinated Research Program on Plasma-Wall Interactions with Irradiated Tungsten and Tungsten Alloys in Fusion Devices, 2013-2017Brian Wirth (ORNL/UTK)B.J. Braams (IAEA)

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