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Verification Validation And Uncertainty Quantification Of Multi Physics Modeling Of Nuclear Reactors

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Improved Best Estimate Plus Uncertainty Methodology Including Advanced Validation Concepts to License Evolving Nuclear Reactors

Improved Best Estimate Plus Uncertainty Methodology Including Advanced Validation Concepts to License Evolving Nuclear Reactors Book
Author : N.A
Publisher :
Release : 2010
ISBN :
Language : En, Es, Fr & De

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Book Description :

Many evolving nuclear energy programs plan to use advanced predictive multi-scale multi-physics simulation and modeling capabilities to reduce cost and time from design through licensing. Historically, the role of experiments was primary tool for design and understanding of nuclear system behavior while modeling and simulation played the subordinate role of supporting experiments. In the new era of multi-scale multi-physics computational based technology development, the experiments will still be needed but they will be performed at different scales to calibrate and validate models leading predictive simulations. Cost saving goals of programs will require us to minimize the required number of validation experiments. Utilization of more multi-scale multi-physics models introduces complexities in the validation of predictive tools. Traditional methodologies will have to be modified to address these arising issues. This paper lays out the basic aspects of a methodology that can be potentially used to address these new challenges in design and licensing of evolving nuclear technology programs. The main components of the proposed methodology are verification, validation, calibration, and uncertainty quantification. An enhanced calibration concept is introduced and is accomplished through data assimilation. The goal is to enable best-estimate prediction of system behaviors in both normal and safety related environments. To achieve this goal requires the additional steps of estimating the domain of validation and quantification of uncertainties that allow for extension of results to areas of the validation domain that are not directly tested with experiments, which might include extension of the modeling and simulation (M & S) capabilities for application to full-scale systems. The new methodology suggests a formalism to quantify an adequate level of validation (predictive maturity) with respect to required selective data so that required testing can be minimized for cost saving purposes by showing further testing wold not enhance the quality of the validation of predictive tools. The proposed methodology is at a conceptual level. When matured and if considered favorably by the stakeholders, it could serve as a new framework for the next generation of the best estimate plus uncertainty licensing methodology that USNRC developed previously. In order to come to that level of maturity it is necessary to communicate the methodology to scientific, design and regulatory stakeholders for discussion and debates. This paper is the first step to establish this communication.

Uncertainty Quantification in Multiscale Materials Modeling

Uncertainty Quantification in Multiscale Materials Modeling Book
Author : Yan Wang,David L. McDowell
Publisher : Woodhead Publishing
Release : 2020-03-10
ISBN : 008102942X
Language : En, Es, Fr & De

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Book Description :

Uncertainty Quantification in Multiscale Materials Modeling provides a complete overview of uncertainty quantification (UQ) in computational materials science. It provides practical tools and methods along with examples of their application to problems in materials modeling. UQ methods are applied to various multiscale models ranging from the nanoscale to macroscale. This book presents a thorough synthesis of the state-of-the-art in UQ methods for materials modeling, including Bayesian inference, surrogate modeling, random fields, interval analysis, and sensitivity analysis, providing insight into the unique characteristics of models framed at each scale, as well as common issues in modeling across scales. Synthesizes available UQ methods for materials modeling Provides practical tools and examples for problem solving in modeling material behavior across various length scales Demonstrates UQ in density functional theory, molecular dynamics, kinetic Monte Carlo, phase field, finite element method, multiscale modeling, and to support decision making in materials design Covers quantum, atomistic, mesoscale, and engineering structure-level modeling and simulation

Model Validation and Uncertainty Quantification Volume 3

Model Validation and Uncertainty Quantification  Volume 3 Book
Author : H. Sezer Atamturktur,Babak Moaveni,Costas Papadimitriou,Tyler Schoenherr
Publisher : Springer Science & Business Media
Release : 2014-04-11
ISBN : 3319045520
Language : En, Es, Fr & De

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Book Description :

This third volume of eight from the IMAC - XXXII Conference, brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on: Linear Systems Substructure Modelling Adaptive Structures Experimental Techniques Analytical Methods Damage Detection Damping of Materials & Members Modal Parameter Identification Modal Testing Methods System Identification Active Control Modal Parameter Estimation Processing Modal Data

Assessing the Reliability of Complex Models

Assessing the Reliability of Complex Models Book
Author : National Research Council,Division on Engineering and Physical Sciences,Board on Mathematical Sciences and Their Applications,Committee on Mathematical Foundations of Verification, Validation, and Uncertainty Quantification
Publisher : National Academies Press
Release : 2012-07-26
ISBN : 0309256348
Language : En, Es, Fr & De

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Book Description :

Advances in computing hardware and algorithms have dramatically improved the ability to simulate complex processes computationally. Today's simulation capabilities offer the prospect of addressing questions that in the past could be addressed only by resource-intensive experimentation, if at all. Assessing the Reliability of Complex Models recognizes the ubiquity of uncertainty in computational estimates of reality and the necessity for its quantification. As computational science and engineering have matured, the process of quantifying or bounding uncertainties in a computational estimate of a physical quality of interest has evolved into a small set of interdependent tasks: verification, validation, and uncertainty of quantification (VVUQ). In recognition of the increasing importance of computational simulation and the increasing need to assess uncertainties in computational results, the National Research Council was asked to study the mathematical foundations of VVUQ and to recommend steps that will ultimately lead to improved processes. Assessing the Reliability of Complex Models discusses changes in education of professionals and dissemination of information that should enhance the ability of future VVUQ practitioners to improve and properly apply VVUQ methodologies to difficult problems, enhance the ability of VVUQ customers to understand VVUQ results and use them to make informed decisions, and enhance the ability of all VVUQ stakeholders to communicate with each other. This report is an essential resource for all decision and policy makers in the field, students, stakeholders, UQ experts, and VVUQ educators and practitioners.

High Performance Computing Applications in Numerical Simulation and Edge Computing

High Performance Computing Applications in Numerical Simulation and Edge Computing Book
Author : Changjun Hu,Wen Yang,Congfeng Jiang,Dong Dai
Publisher : Springer Nature
Release : 2019-08-28
ISBN : 9813299878
Language : En, Es, Fr & De

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Book Description :

This book constitutes the referred proceedings of two workshops held at the 32nd ACM International Conference on Supercomputing, ACM ICS 2018, in Beijing, China, in June 2018. This volume presents the papers that have been accepted for the following workshops: Second International Workshop on High Performance Computing for Advanced Modeling and Simulation in Nuclear Energy and Environmental Science, HPCMS 2018, and First International Workshop on HPC Supported Data Analytics for Edge Computing, HiDEC 2018. The 20 full papers presented during HPCMS 2018 and HiDEC 2018 were carefully reviewed and selected from numerous submissions. The papers reflect such topics as computing methodologies; parallel algorithms; simulation types and techniques; machine learning.

INIS Atomindex

INIS Atomindex Book
Author : N.A
Publisher :
Release : 1995
ISBN :
Language : En, Es, Fr & De

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Book Description :

Energy Research Abstracts

Energy Research Abstracts Book
Author : N.A
Publisher :
Release : 1995
ISBN :
Language : En, Es, Fr & De

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Book Description :

Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.

Government Reports Annual Index

Government Reports Annual Index Book
Author : N.A
Publisher :
Release : 1995
ISBN :
Language : En, Es, Fr & De

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Book Description :

Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.

Physics Briefs

Physics Briefs Book
Author : N.A
Publisher :
Release : 1991
ISBN :
Language : En, Es, Fr & De

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Book Description :

Air Pollution Modeling and Its Application XIX

Air Pollution Modeling and Its Application XIX Book
Author : Carlos Borrego,Ana Isabel Miranda
Publisher : Springer Science & Business Media
Release : 2008-07-22
ISBN : 1402084536
Language : En, Es, Fr & De

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Book Description :

In 1969, the North Atlantic Treaty Organization (NATO) established the C- mittee on Challenges of Modern Society (CCMS). The subject of air pollution was from the start one of the priority problems under study within the framework of various pilot studies undertaken by this committee. The organization of a periodic conference dealing with air pollution modelling and its application has become one of the main activities within the pilot study relating to air pollution. The first five international conferences were organized by the United States as the pilot country, the second five by the Federal Republic of Germany, the third five by Belgium, the fourth four by The Netherlands, the next five by Denmark and the last five by Portugal. This volume contains the abstracts of papers and posters presented at the 29th NATO/CCMS International Technical Meeting on Air Pollution Modelling and Its Application, held in Aveiro, Portugal, during September 24–28, 2007. This ITM was organized by the University of Aveiro, Portugal (Pilot Country and Host Organization). The key topics distinguished at this ITM included: Local and urban scale modelling; Regional and intercontinental modelling; Data assimilation and air quality forecasting; Model assessment and verification; Aerosols in the atmosphere; Interactions between climate change and air quality; Air quality and human health.

World Congress on Medical Physics and Biomedical Engineering May 26 31 2012 Beijing China

World Congress on Medical Physics and Biomedical Engineering May 26 31  2012  Beijing  China Book
Author : Mian Long
Publisher : Springer Science & Business Media
Release : 2013-02-11
ISBN : 3642293050
Language : En, Es, Fr & De

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Book Description :

The congress’s unique structure represents the two dimensions of technology and medicine: 13 themes on science and medical technologies intersect with five challenging main topics of medicine to create a maximum of synergy and integration of aspects on research, development and application. Each of the congress themes was chaired by two leading experts. The themes address specific topics of medicine and technology that provide multiple and excellent opportunities for exchanges.

Machine Tool Technology Mechatronics and Information Engineering

Machine Tool Technology  Mechatronics and Information Engineering Book
Author : Zhong Min Wang,Dong Fang Yang,Kun Yang,Liang Yu Guo,Jian Ming Tan
Publisher : Trans Tech Publications Ltd
Release : 2014-09-22
ISBN : 3038266302
Language : En, Es, Fr & De

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Book Description :

Collection of selected, peer reviewed papers from the 2014 International Conference on Machine Tool Technology and Mechatronics Engineering (ICMTTME 2014), June 22-23, 2014, Guilin, Guangxi, China. The 1440 papers are grouped as follows: Chapter 1: Applied Mechanics, Chapter 2: Measurement and Instrumentation, Monitoring, Testing and Detection Technologies, Chapter 3: Numerical Methods, Computation Methods and Algorithms for Modeling, Simulation and Optimization, Data Mining and Data Processing, Chapter 4: Information Technologies, WEB and Networks Engineering, Information Security, Software Application and Development, Chapter 5: Electronics and Microelectronics, Embedded and Integrated Systems, Power and Energy, Electric and Magnetic Systems, Chapter 6: Communication, Signal and Image Processing, Data Acquisition, Identification and Recognation Technologies, Chapter 7: Materials Processing and Manufacturing Technology, Industry Applications, Chapter 8: Civil and Structure Engineering, Architecture Science, Chapter 9: Bio- and Medical Applications, Chemistry Engineering, Resources and Environmental Engineering, Chapter 10: Advanced Information and Innovative Technologies for Management, Logistics, Economics, Marketing, Education, Assessment