Download or read book Verification Validation and Predictive Capability in Computational Engineering and Physics written by and published by . This book was released on 2003 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developers of computer codes, analysts who use the codes, and decision makers who rely on the results of the analyses face a critical question: How should confidence in modeling and simulation be critically assessed? Verification and validation (V & V) of computational simulations are the primary methods for building and quantifying this confidence. Briefly, verification is the assessment of the accuracy of the solution to a computational model. Validation is the assessment of the accuracy of a computational simulation by comparison with experimental data. In verification, the relationship of the simulation to the real world is not an issue. In validation, the relationship between computation and the real world, i.e., experimental data, is the issue.
Download or read book Verification Validation and Predictive Capability in Computational Engineering and Physics written by William L. Oberkampf and published by . This book was released on 2003 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: Developers of computer codes, analysts who use the codes, and decision makers who rely on the results of the analyses face a critical question: How should confidence in modeling and simulation be critically assessed? Verification and validation (V & V) of computational simulations are the primary methods for building and quantifying this confidence. Briefly, verification is the assessment of the accuracy of the solution to a computational model. Validation is the assessment of the accuracy of a computational simulation by comparison with experimental data. In verification, the relationship of the simulation to the real world is not an issue. In validation, the relationship between computation and the real world, i.e., experimental data, is the issue. This paper presents our viewpoint of the state of the art in V & V in computational physics. (In this paper we refer to all fields of computational engineering and physics, e.g., computational fluid dynamics, computational solid mechanics, structural dynamics, shock wave physics, computational chemistry, etc., as computational physics.) We do not provide a comprehensive review of the multitudinous contributions to V & V, although we do reference a large number of previous works from many fields. We have attempted to bring together many different perspectives on V & V, highlight those perspectives that are effective from a practical engineering viewpoint, suggest future research topics, and discuss key implementation issues that are necessary to improve the effectiveness of V & V. We describe our view of the framework in which predictive capability relies on V & V, as well as other factors that affect predictive capability. Our opinions about the research needs and management issues in V & V are very practical: What methods and techniques need to be developed and what changes in the views of management need to occur to increase the usefulness, reliability, and impact of computational physics for decision making about engineering systems? We review the state of the art in V & V over a wide range of topics, for example, prioritization of V & V activities using the Phenomena Identification and Ranking Table (PIRT), code verification, software quality assurance (SQA), numerical error estimation, hierarchical experiments for validation, characteristics of validation experiments, the need to perform nondeterministic computational simulations in comparisons with experimental data, and validation metrics. We then provide an extensive discussion of V & V research and implementation issues that we believe must be addressed for V & V to be more effective in improving confidence in computational predictive capability. Some of the research topics addressed are development of improved procedures for the use of the PIRT for prioritizing V & V activities, the method of manufactured solutions for code verification, development and use of hierarchical validation diagrams, and the construction and use of validation metrics incorporating statistical measures. Some of the implementation topics addressed are the needed management initiatives to better align and team computationalists and experimentalists in conducting validation activities, the perspective of commercial software companies, the key role of analysts and decision makers as code customers, obstacles to the improved effectiveness of V & V, effects of cost and schedule constraints on practical applications in industrial settings, and the role of engineering standards committees in documenting best practices for V & V.
Download or read book Verification and Validation in Scientific Computing written by William L. Oberkampf and published by Cambridge University Press. This book was released on 2010-10-14 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book A Study of Verification Validation and Predictive Capability of Computational Tools written by Jeffrey Wayne Weathers and published by . This book was released on 2008 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AIAA Guide for the Verification and Validation of Computational Fluid Dynamics Simulations written by American Institute of Aeronautics and Astronautics and published by AIAA (American Institute of Aeronautics & Astronautics). This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document defines a number of key terms, discusses fundamental concepts, and specifies general procedures for conducting verification and validation of computational fluid dynamics simulations. It's goal is to provide a foundation for the major issues and concepts in verification and validation. However, it does not recommend standards in these areas because a number of important issues are not yet resolved.
Download or read book Verification Validation and Testing of Engineered Systems written by Avner Engel and published by John Wiley & Sons. This book was released on 2010-11-19 with total page 723 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systems' Verification Validation and Testing (VVT) are carried out throughout systems' lifetimes. Notably, quality-cost expended on performing VVT activities and correcting system defects consumes about half of the overall engineering cost. Verification, Validation and Testing of Engineered Systems provides a comprehensive compendium of VVT activities and corresponding VVT methods for implementation throughout the entire lifecycle of an engineered system. In addition, the book strives to alleviate the fundamental testing conundrum, namely: What should be tested? How should one test? When should one test? And, when should one stop testing? In other words, how should one select a VVT strategy and how it be optimized? The book is organized in three parts: The first part provides introductory material about systems and VVT concepts. This part presents a comprehensive explanation of the role of VVT in the process of engineered systems (Chapter-1). The second part describes 40 systems' development VVT activities (Chapter-2) and 27 systems' post-development activities (Chapter-3). Corresponding to these activities, this part also describes 17 non-testing systems' VVT methods (Chapter-4) and 33 testing systems' methods (Chapter-5). The third part of the book describes ways to model systems' quality cost, time and risk (Chapter-6), as well as ways to acquire quality data and optimize the VVT strategy in the face of funding, time and other resource limitations as well as different business objectives (Chapter-7). Finally, this part describes the methodology used to validate the quality model along with a case study describing a system's quality improvements (Chapter-8). Fundamentally, this book is written with two categories of audience in mind. The first category is composed of VVT practitioners, including Systems, Test, Production and Maintenance engineers as well as first and second line managers. The second category is composed of students and faculties of Systems, Electrical, Aerospace, Mechanical and Industrial Engineering schools. This book may be fully covered in two to three graduate level semesters; although parts of the book may be covered in one semester. University instructors will most likely use the book to provide engineering students with knowledge about VVT, as well as to give students an introduction to formal modeling and optimization of VVT strategy.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 2004 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Climate System Dynamics and Modeling written by Hugues Goosse and published by Cambridge University Press. This book was released on 2015-08-10 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introductory textbook on all aspects of climate system dynamics and modelling for students, scientists and professionals.
Download or read book Mathematics as a Tool written by Johannes Lenhard and published by Springer. This book was released on 2017-04-04 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book puts forward a new role for mathematics in the natural sciences. In the traditional understanding, a strong viewpoint is advocated, on the one hand, according to which mathematics is used for truthfully expressing laws of nature and thus for rendering the rational structure of the world. In a weaker understanding, many deny that these fundamental laws are of an essentially mathematical character, and suggest that mathematics is merely a convenient tool for systematizing observational knowledge. The position developed in this volume combines features of both the strong and the weak viewpoint. In accordance with the former, mathematics is assigned an active and even shaping role in the sciences, but at the same time, employing mathematics as a tool is taken to be independent from the possible mathematical structure of the objects under consideration. Hence the tool perspective is contextual rather than ontological. Furthermore, tool-use has to respect conditions like suitability, efficacy, optimality, and others. There is a spectrum of means that will normally differ in how well they serve particular purposes. The tool perspective underlines the inevitably provisional validity of mathematics: any tool can be adjusted, improved, or lose its adequacy upon changing practical conditions.
Download or read book Earthquake Engineering for Dams and Reservoirs written by Jonathan Hinks and published by Emerald Group Publishing. This book was released on 2023-09-25 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Earthquake Engineering for Dams and Reservoirs is an invaluable source for any engineer, or designer, tasked with building, retrofitting or maintaining dams in all seismically active regions to make decisions on the type of dam structure required for new projects and understand the issues that face existing dams and how to mitigate them.
Download or read book Bayesian Methods for Interaction and Design written by John H. Williamson and published by Cambridge University Press. This book was released on 2022-08-25 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduces Bayesian methods and their implementation in application ranging from pointing-based interfaces to modelling cognitive processes.
Download or read book Engineering Design Reliability Handbook written by Efstratios Nikolaidis and published by CRC Press. This book was released on 2004-12-22 with total page 1216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Researchers in the engineering industry and academia are making important advances on reliability-based design and modeling of uncertainty when data is limited. Non deterministic approaches have enabled industries to save billions by reducing design and warranty costs and by improving quality. Considering the lack of comprehensive and defini
Download or read book Urban Habitat Constructions Under Catastrophic Events written by Federico M. Mazzolani and published by CRC Press. This book was released on 2010-08-30 with total page 477 pages. Available in PDF, EPUB and Kindle. Book excerpt: COST is an intergovernmental framework for European Cooperation in Science and Technology, allowing the coordination of nationally-funded research on a European level. Part of COST was COST Action C26Urban Habitat Constructions Under Catastrophic Events which started in 2006 and held its final conference in Naples, Italy, on 16-18 September 201
Download or read book Handbook of Smart Energy Systems written by Michel Fathi and published by Springer Nature. This book was released on 2023-08-04 with total page 3382 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook analyzes and develops methods and models to optimize solutions for energy access (for industry and the general world population alike) in terms of reliability and sustainability. With a focus on improving the performance of energy systems, it brings together state-of-the-art research on reliability enhancement, intelligent development, simulation and optimization, as well as sustainable development of energy systems. It helps energy stakeholders and professionals learn the methodologies needed to improve the reliability of energy supply-and-demand systems, achieve more efficient long-term operations, deal with uncertainties in energy systems, and reduce energy emissions. Highlighting novel models and their applications from leading experts in this important area, this book will appeal to researchers, students, and engineers in the various domains of smart energy systems and encourage them to pursue research and development in this exciting and highly relevant field.
Download or read book Coarse Grained Simulation and Turbulent Mixing written by Fernando F. Grinstein and published by Cambridge University Press. This book was released on 2016-06-30 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small-scale turbulent flow dynamics is traditionally viewed as universal and as enslaved to that of larger scales. In coarse grained simulation (CGS), large energy-containing structures are resolved, smaller structures are spatially filtered out, and unresolved subgrid scale (SGS) effects are modeled. Coarse Grained Simulation and Turbulent Mixing reviews our understanding of CGS. Beginning with an introduction to the fundamental theory the discussion then moves to the crucial challenges of predictability. Next, it addresses verification and validation, the primary means of assessing accuracy and reliability of numerical simulation. The final part reports on the progress made in addressing difficult non-equilibrium applications of timely current interest involving variable density turbulent mixing. The book will be of fundamental interest to graduate students, research scientists, and professionals involved in the design and analysis of complex turbulent flows.
Download or read book Mechatronics and Industrial Informatics II written by Prasad Yarlagadda and published by Trans Tech Publications Ltd. This book was released on 2014-07-18 with total page 1152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of selected, peer reviewed papers from the 2014 2nd International Conference on Mechatronics and Industrial Informatics (ICMII 2014), May 30-31, 2014, Guangzhou, China. The 213 papers are grouped as follows: Chapter 1: Applied Mechanics, Mechanisms and Dynamics, Chapter 2: Materials Processing and Advanced Manufacturing Technology, Chapter 3: Product Design, Manufacturing and Industrial Informatics Applications, Chapter 4: Computer Information Processing Technology, Artificial Intelligence and Intelligent Algorithms, Chapter 5: Sound, Image, Signal and Video Processing and Technologies, Chapter 6: Measurement Technology, Instruments and Sensors, Detection Technologies, Chapter 7: Automation Technology, Control System Modeling and Simulation Technology, Chapter 8: Power Engineering and Control, Power Electronics, Chapter 9: Vehicle Control Systems and Intelligent Traffic, Chapter 10: Communications Technology and Materials, Chapter 11: Computer Network and Information Security, Chapter 12: Database Systems and Software Development, Chapter 13: E-Commerce, E-Government, Internet Technologies, WEB Design, Chapter 14: Engineering Education and Engineering Management
Download or read book New Methodological Perspectives on Observation and Experimentation in Science written by Wenceslao J. González and published by Netbiblo. This book was released on 2010-12-29 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Observation and experimentation are central topics of philosophy and methodology of science. The empirical sciences have commonly been associated to observational and experimental processes, because they have been considered crucial for testing the contents of these. Thus, observation and experimentation have received attention from different angles, and they have been historically relevant in the advancement of science. Their philosophical-methodological analysis includes some key aspects those related to axiological, epistemological and methodological issues. New Methodological Perspectives on Observation and Experimentation in Science deals with a classic topic that is seen from new angles. Its nine chapters seek “non-traditional” aspects, trying to extend the boundaries of this philosophical-methodological theme. They are presented in five sections: 1) A Philosophical-Methodological Context; 2) Experience and Scientific Observations; 3) Empirical Support and Experiments in Science; 4) Changes in the Framework on Observation and Experimentation; and 5) Enlarging the Philosophical Scope: Law and Ecology. Wenceslao J. Gonzalez is Professor of Logic and Philosophy of Science (University of A Coruña). He is a Full Member of the International Academy for Philosophy of Sciences (AIPS), Visiting fellow at the Center for Philosophy of Science (University of Pittsburgh) and a Team Leader of the European Science Foundation program entitled “The Philosophy of Science in a European Perspective.” He has been named a Distinguished Researcher by the Main National University of San Marcos in Lima (Peru). He has been a visiting researcher at the Universities of St. Andrews, Münster and London (LSE). He has given lectures at the Universities of Pittsburgh, Stanford, Quebec and Helsinki. The conferences in which he has participated include those organized by the Universities of Uppsala, New South Wales, Bologna, Canterbury (NZ), and Beijing. He has edited 26 volumes on philosophy and methodology of science.
