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Title: A Perspective on Coupled Multiscale Simulation and Validation in Nuclear Materials

Abstract

The field of nuclear materials encompasses numerous opportunities to address and ultimately solve longstanding industrial problems by improving the fundamental understanding of materials through the integration of experiments with multiscale modeling and high-performance simulation. A particularly noteworthy example is an ongoing study of axial power distortions in a nuclear reactor induced by corrosion deposits, known as CRUD (Chalk River unidentified deposits). We describe how progress is being made toward achieving scientific advances and technological solutions on two fronts. Specifically, the study of thermal conductivity of CRUD phases has augmented missing data as well as revealed new mechanisms. Additionally, the development of a multiscale simulation framework shows potential for the validation of a new capability to predict the power distribution of a reactor, in effect direct evidence of technological impact. The material- and system-level challenges identified in the study of CRUD are similar to other well-known vexing problems in nuclear materials, such as irradiation accelerated corrosion, stress corrosion cracking, and void swelling; they all involve connecting materials science fundamentals at the atomistic- and mesoscales to technology challenges at the macroscale.

Authors:
; ; ;
Publication Date:
Research Org.:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1120824
Report Number(s):
INL/JOU-14-31312
Journal ID: ISSN 0883--7694
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Journal Article
Journal Name:
Materials Research Society Bulletin
Additional Journal Information:
Journal Volume: 39; Journal Issue: 1; Journal ID: ISSN 0883--7694
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS; coupled multiscale simulation

Citation Formats

Short, M. P., Gaston, D., Stanek, C. R., and Yip, S. A Perspective on Coupled Multiscale Simulation and Validation in Nuclear Materials. United States: N. p., 2014. Web. doi:10.1557/mrs.2013.315.
Short, M. P., Gaston, D., Stanek, C. R., & Yip, S. A Perspective on Coupled Multiscale Simulation and Validation in Nuclear Materials. United States. https://doi.org/10.1557/mrs.2013.315
Short, M. P., Gaston, D., Stanek, C. R., and Yip, S. 2014. "A Perspective on Coupled Multiscale Simulation and Validation in Nuclear Materials". United States. https://doi.org/10.1557/mrs.2013.315.
@article{osti_1120824,
title = {A Perspective on Coupled Multiscale Simulation and Validation in Nuclear Materials},
author = {Short, M. P. and Gaston, D. and Stanek, C. R. and Yip, S.},
abstractNote = {The field of nuclear materials encompasses numerous opportunities to address and ultimately solve longstanding industrial problems by improving the fundamental understanding of materials through the integration of experiments with multiscale modeling and high-performance simulation. A particularly noteworthy example is an ongoing study of axial power distortions in a nuclear reactor induced by corrosion deposits, known as CRUD (Chalk River unidentified deposits). We describe how progress is being made toward achieving scientific advances and technological solutions on two fronts. Specifically, the study of thermal conductivity of CRUD phases has augmented missing data as well as revealed new mechanisms. Additionally, the development of a multiscale simulation framework shows potential for the validation of a new capability to predict the power distribution of a reactor, in effect direct evidence of technological impact. The material- and system-level challenges identified in the study of CRUD are similar to other well-known vexing problems in nuclear materials, such as irradiation accelerated corrosion, stress corrosion cracking, and void swelling; they all involve connecting materials science fundamentals at the atomistic- and mesoscales to technology challenges at the macroscale.},
doi = {10.1557/mrs.2013.315},
url = {https://www.osti.gov/biblio/1120824}, journal = {Materials Research Society Bulletin},
issn = {0883--7694},
number = 1,
volume = 39,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 2014},
month = {Wed Jan 01 00:00:00 EST 2014}
}