# 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

Author | : Anonim |

Publsiher | : Anonim |

Total Pages | : 329 |

Release | : 2010 |

ISBN 10 | : |

ISBN 13 | : OCLC:873865836 |

Language | : EN, FR, DE, ES & NL |

**Improved Best Estimate Plus Uncertainty Methodology Including Advanced Validation Concepts to License Evolving Nuclear Reactors Book Review:**

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

Author | : Yan Wang,David L. McDowell |

Publsiher | : Woodhead Publishing |

Total Pages | : 604 |

Release | : 2020-03-10 |

ISBN 10 | : 008102942X |

ISBN 13 | : 9780081029428 |

Language | : EN, FR, DE, ES & NL |

**Uncertainty Quantification in Multiscale Materials Modeling Book Review:**

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

Author | : H. Sezer Atamturktur,Babak Moaveni,Costas Papadimitriou,Tyler Schoenherr |

Publsiher | : Springer Science & Business Media |

Total Pages | : 427 |

Release | : 2014-04-11 |

ISBN 10 | : 3319045520 |

ISBN 13 | : 9783319045528 |

Language | : EN, FR, DE, ES & NL |

**Model Validation and Uncertainty Quantification Volume 3 Book Review:**

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

## Expansion of the Severe Accident Code MELCOR by Coupling External Models

Author | : Dietrich, Philipp |

Publsiher | : KIT Scientific Publishing |

Total Pages | : 162 |

Release | : 2017-02-20 |

ISBN 10 | : 3731506033 |

ISBN 13 | : 9783731506034 |

Language | : EN, FR, DE, ES & NL |

**Expansion of the Severe Accident Code MELCOR by Coupling External Models Book Review:**

## Assessing the Reliability of Complex Models

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 |

Publsiher | : National Academies Press |

Total Pages | : 144 |

Release | : 2012-07-26 |

ISBN 10 | : 0309256348 |

ISBN 13 | : 9780309256346 |

Language | : EN, FR, DE, ES & NL |

**Assessing the Reliability of Complex Models Book Review:**

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

Author | : Changjun Hu,Wen Yang,Congfeng Jiang,Dong Dai |

Publsiher | : Springer Nature |

Total Pages | : 247 |

Release | : 2019-08-28 |

ISBN 10 | : 9813299878 |

ISBN 13 | : 9789813299870 |

Language | : EN, FR, DE, ES & NL |

**High Performance Computing Applications in Numerical Simulation and Edge Computing Book Review:**

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.

## Coarse Grained Simulation and Turbulent Mixing

Author | : Fernando F. Grinstein |

Publsiher | : Cambridge University Press |

Total Pages | : 516 |

Release | : 2016-05-31 |

ISBN 10 | : 1107137047 |

ISBN 13 | : 9781107137042 |

Language | : EN, FR, DE, ES & NL |

**Coarse Grained Simulation and Turbulent Mixing Book Review:**

Reviews our current understanding of the subject. For graduate students and researchers in computational fluid dynamics and turbulence.

## Active Subspaces

Author | : Paul G. Constantine |

Publsiher | : SIAM |

Total Pages | : 100 |

Release | : 2015-03-17 |

ISBN 10 | : 1611973864 |

ISBN 13 | : 9781611973860 |

Language | : EN, FR, DE, ES & NL |

**Active Subspaces Book Review:**

Scientists and engineers use computer simulations to study relationships between a model's input parameters and its outputs. However, thorough parameter studies are challenging, if not impossible, when the simulation is expensive and the model has several inputs. To enable studies in these instances, the engineer may attempt to reduce the dimension of the model's input parameter space. Active subspaces are an emerging set of dimension reduction tools that identify important directions in the parameter space. This book describes techniques for discovering a model's active subspace and proposes methods for exploiting the reduced dimension to enable otherwise infeasible parameter studies. Readers will find new ideas for dimension reduction, easy-to-implement algorithms, and several examples of active subspaces in action.

## Fifth International Conference on Simulation Methods in Nuclear Engineering September 8 11 1996 Montreal Canada

Author | : Anonim |

Publsiher | : Anonim |

Total Pages | : 329 |

Release | : 1996 |

ISBN 10 | : |

ISBN 13 | : PSU:000046468840 |

Language | : EN, FR, DE, ES & NL |

**Fifth International Conference on Simulation Methods in Nuclear Engineering September 8 11 1996 Montreal Canada Book Review:**

## Verification and Validation in Scientific Computing

Author | : William L. Oberkampf,Christopher J. Roy |

Publsiher | : Cambridge University Press |

Total Pages | : 329 |

Release | : 2010-10-14 |

ISBN 10 | : 1139491768 |

ISBN 13 | : 9781139491761 |

Language | : EN, FR, DE, ES & NL |

**Verification and Validation in Scientific Computing Book Review:**

Advances in scientific computing have made modelling and simulation an important part of the decision-making process in engineering, science, and public policy. This book provides a comprehensive and systematic development of the basic concepts, principles, and procedures for verification and validation of models and simulations. The emphasis is placed on models that are described by partial differential and integral equations and the simulations that result from their numerical solution. The methods described can be applied to a wide range of technical fields, from the physical sciences, engineering and technology and industry, through to environmental regulations and safety, product and plant safety, financial investing, and governmental regulations. This book will be genuinely welcomed by researchers, practitioners, and decision makers in a broad range of fields, who seek to improve the credibility and reliability of simulation results. It will also be appropriate either for university courses or for independent study.

## Design basis Accident Analysis Methods For Light water Nuclear Power Plants

Author | : Martin Robert,Frepoli Cesare |

Publsiher | : World Scientific |

Total Pages | : 716 |

Release | : 2019-02-13 |

ISBN 10 | : 9813275677 |

ISBN 13 | : 9789813275676 |

Language | : EN, FR, DE, ES & NL |

**Design basis Accident Analysis Methods For Light water Nuclear Power Plants Book Review:**

This book captures the principles of safety evaluation as practiced in the regulated light-water reactor nuclear industry, as established and stabilized over the last 30 years. It is expected to serve both the current industry and those planning for the future. The work's coverage of the subject matter is the broadest to date, including not only the common topics of modeling and simulation, but also methods supporting the basis for the underlying assumptions, the extension to radiological safety, what to expect in a licensing review, historical perspectives and the implication for new designs.This text is an essential resource for practitioners and students, on the current best-practices in nuclear power plant safety and their basis. Contributors of this work are subject matter experts in their specialties, much of which was nurtured and inspired by Prof. Larry Hochreiter, a prominent nuclear safety pioneer.

## Model Order Reduction Theory Research Aspects and Applications

Author | : Wilhelmus H. Schilders,Henk A. van der Vorst,Joost Rommes |

Publsiher | : Springer Science & Business Media |

Total Pages | : 471 |

Release | : 2008-08-27 |

ISBN 10 | : 3540788417 |

ISBN 13 | : 9783540788416 |

Language | : EN, FR, DE, ES & NL |

**Model Order Reduction Theory Research Aspects and Applications Book Review:**

The idea for this book originated during the workshop “Model order reduction, coupled problems and optimization” held at the Lorentz Center in Leiden from S- tember 19–23, 2005. During one of the discussion sessions, it became clear that a book describing the state of the art in model order reduction, starting from the very basics and containing an overview of all relevant techniques, would be of great use for students, young researchers starting in the ?eld, and experienced researchers. The observation that most of the theory on model order reduction is scattered over many good papers, making it dif?cult to ?nd a good starting point, was supported by most of the participants. Moreover, most of the speakers at the workshop were willing to contribute to the book that is now in front of you. The goal of this book, as de?ned during the discussion sessions at the workshop, is three-fold: ?rst, it should describe the basics of model order reduction. Second, both general and more specialized model order reduction techniques for linear and nonlinear systems should be covered, including the use of several related numerical techniques. Third, the use of model order reduction techniques in practical appli- tions and current research aspects should be discussed. We have organized the book according to these goals. In Part I, the rationale behind model order reduction is explained, and an overview of the most common methods is described.

## Computational Science ICCS 2020

Author | : Valeria V. Krzhizhanovskaya |

Publsiher | : Springer Nature |

Total Pages | : 329 |

Release | : |

ISBN 10 | : 3030504360 |

ISBN 13 | : 9783030504366 |

Language | : EN, FR, DE, ES & NL |

**Computational Science ICCS 2020 Book Review:**

## Government Reports Announcements Index

Author | : Anonim |

Publsiher | : Anonim |

Total Pages | : 329 |

Release | : 1996-06 |

ISBN 10 | : |

ISBN 13 | : MINN:30000005966175 |

Language | : EN, FR, DE, ES & NL |

**Government Reports Announcements Index Book Review:**

## Computational Science ICCS 2020

Author | : Valeria V. Krzhizhanovskaya |

Publsiher | : Springer Nature |

Total Pages | : 329 |

Release | : |

ISBN 10 | : 3030504336 |

ISBN 13 | : 9783030504335 |

Language | : EN, FR, DE, ES & NL |

**Computational Science ICCS 2020 Book Review:**

## Uncertainty Quantification and Model Calibration

Author | : Jan Peter Hessling |

Publsiher | : BoD – Books on Demand |

Total Pages | : 226 |

Release | : 2017-07-05 |

ISBN 10 | : 9535132792 |

ISBN 13 | : 9789535132790 |

Language | : EN, FR, DE, ES & NL |

**Uncertainty Quantification and Model Calibration Book Review:**

Uncertainty quantification may appear daunting for practitioners due to its inherent complexity but can be intriguing and rewarding for anyone with mathematical ambitions and genuine concern for modeling quality. Uncertainty quantification is what remains to be done when too much credibility has been invested in deterministic analyses and unwarranted assumptions. Model calibration describes the inverse operation targeting optimal prediction and refers to inference of best uncertain model estimates from experimental calibration data. The limited applicability of most state-of-the-art approaches to many of the large and complex calculations made today makes uncertainty quantification and model calibration major topics open for debate, with rapidly growing interest from both science and technology, addressing subtle questions such as credible predictions of climate heating.

## Crystal Plasticity Finite Element Methods

Author | : Franz Roters,Philip Eisenlohr,Thomas R. Bieler,Dierk Raabe |

Publsiher | : John Wiley & Sons |

Total Pages | : 208 |

Release | : 2011-08-04 |

ISBN 10 | : 3527642099 |

ISBN 13 | : 9783527642090 |

Language | : EN, FR, DE, ES & NL |

**Crystal Plasticity Finite Element Methods Book Review:**

Written by the leading experts in computational materials science, this handy reference concisely reviews the most important aspects of plasticity modeling: constitutive laws, phase transformations, texture methods, continuum approaches and damage mechanisms. As a result, it provides the knowledge needed to avoid failures in critical systems udner mechanical load. With its various application examples to micro- and macrostructure mechanics, this is an invaluable resource for mechanical engineers as well as for researchers wanting to improve on this method and extend its outreach.

## Nuclear Power Plant Instrumentation and Control Systems for Safety and Security

Author | : Yastrebenetsky, Michael |

Publsiher | : IGI Global |

Total Pages | : 470 |

Release | : 2014-02-28 |

ISBN 10 | : 1466651342 |

ISBN 13 | : 9781466651340 |

Language | : EN, FR, DE, ES & NL |

**Nuclear Power Plant Instrumentation and Control Systems for Safety and Security Book Review:**

Accidents and natural disasters involving nuclear power plants such as Chernobyl, Three Mile Island, and the recent meltdown at Fukushima are rare, but their effects are devastating enough to warrant increased vigilance in addressing safety concerns. Nuclear Power Plant Instrumentation and Control Systems for Safety and Security evaluates the risks inherent to nuclear power and methods of preventing accidents through computer control systems and other such emerging technologies. Students and scholars as well as operators and designers will find useful insight into the latest security technologies with the potential to make the future of nuclear energy clean, safe, and reliable.

## Thermal Hydraulics of Water Cooled Nuclear Reactors

Author | : Francesco D'Auria |

Publsiher | : Woodhead Publishing |

Total Pages | : 1198 |

Release | : 2017-05-18 |

ISBN 10 | : 0081006799 |

ISBN 13 | : 9780081006795 |

Language | : EN, FR, DE, ES & NL |

**Thermal Hydraulics of Water Cooled Nuclear Reactors Book Review:**

Thermal Hydraulics of Water-Cooled Nuclear Reactors reviews flow and heat transfer phenomena in nuclear systems and examines the critical contribution of this analysis to nuclear technology development. With a strong focus on system thermal hydraulics (SYS TH), the book provides a detailed, yet approachable, presentation of current approaches to reactor thermal hydraulic analysis, also considering the importance of this discipline for the design and operation of safe and efficient water-cooled and moderated reactors. Part One presents the background to nuclear thermal hydraulics, starting with a historical perspective, defining key terms, and considering thermal hydraulics requirements in nuclear technology. Part Two addresses the principles of thermodynamics and relevant target phenomena in nuclear systems. Next, the book focuses on nuclear thermal hydraulics modeling, covering the key areas of heat transfer and pressure drops, then moving on to an introduction to SYS TH and computational fluid dynamics codes. The final part of the book reviews the application of thermal hydraulics in nuclear technology, with chapters on V&V and uncertainty in SYS TH codes, the BEPU approach, and applications to new reactor design, plant lifetime extension, and accident analysis. This book is a valuable resource for academics, graduate students, and professionals studying the thermal hydraulic analysis of nuclear power plants and using SYS TH to demonstrate their safety and acceptability. Contains a systematic and comprehensive review of current approaches to the thermal-hydraulic analysis of water-cooled and moderated nuclear reactors Clearly presents the relationship between system level (top-down analysis) and component level phenomenology (bottom-up analysis) Provides a strong focus on nuclear system thermal hydraulic (SYS TH) codes Presents detailed coverage of the applications of thermal-hydraulics to demonstrate the safety and acceptability of nuclear power plants

## American National Standard for the Determination of Steady State Neutron Reaction Rate Distributions and Reactivity of Nuclear Reactors

Author | : American Nuclear Society |

Publsiher | : Anonim |

Total Pages | : 25 |

Release | : 1996 |

ISBN 10 | : |

ISBN 13 | : PSU:000046441690 |

Language | : EN, FR, DE, ES & NL |

**American National Standard for the Determination of Steady State Neutron Reaction Rate Distributions and Reactivity of Nuclear Reactors Book Review:**