January 17, 2021

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Moving Particle Semi-implicit Method

Moving Particle Semi-implicit Method
Author : Seiichi Koshizuka,Kazuya Shibata,Masahiro Kondo,Takuya Matsunaga
Publisher : Academic Press
Release Date : 2018-06-01
Category : Science
Total pages :306
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Moving Particle Semi-implicit Method: A Meshfree Particle Method for Fluid Dynamics begins by familiarizing the reader with basic theory that supports their journey through sections on advanced MPH methods. The unique insights that this method provides include fluid-structure interaction, non-Newtonian flow, and cavitation, making it relevant to a wide range of applications in the mechanical, structural, and nuclear industries, and in bioengineering. Co-authored by the originator of the MPS method, this book is the most authoritative guide available. It will be of great value to students, academics and researchers in industry. Presents the differences between MPH and SPH, helping readers choose between methods for different purposes Provides pieces of computer code that readers can use in their own simulations Includes the full, extended algorithms Explores the use of MPS in a range of industries and applications, including practical advice

Moving Particle Semi- Implicit Method

Moving Particle Semi- Implicit Method
Author : Lambert M Surhone,Mariam T Tennoe,Susan F Henssonow
Publisher : Betascript Publishing
Release Date : 2010-11-05
Category :
Total pages :112
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High Quality Content by WIKIPEDIA articles! The moving particle semi-implicit (MPS) method is a computational method for the simulation of incompressible free surface flows. It is a macroscopic, deterministic particle method (Lagrangian meshfree method) developed by Koshizuka and Oka (1996).The MPS method is similar to the SPH (smoothed-particle hydrodynamics) method (Gingold and Monaghan, 1977; Lucy, 1977) in that both methods provide approximations to the strong form of the Partial Differential Equations (PDEs) on the basis of integral interpolants. However, the MPS method applies simplified differential operator models solely based on a local weighted averaging process without taking the gradient of a kernel function. In addition, the solution process of MPS method differs to that of the original SPH method as the solutions to the PDEs are obtained through a semi-implicit prediction-correction process rather than the fully explicit one in original SPH method.

Moving Particle Semi-implicit Method for Fluid Simulation with Implicitly Defined Obstacles

Moving Particle Semi-implicit Method for Fluid Simulation with Implicitly Defined Obstacles
Author : Anonim
Publisher : Unknown
Release Date : 2015
Category :
Total pages :129
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Abstract: We developed a particle-based fluid simulation method with obstacles defined in implicit form. Our fluid simulation is based on the Moving Particle Semi-implicit (MPS) method, a typical particle-based algorithm achieving incompressible flow. In general, the particle-based fluid simulation is performed with obstacles that are defined as a set of particles located along the boundaries. We employ the implicit representation for the geometric information of obstacles which requires a new formulation of particle motion at the vicinity of boundaries. The main difficulty of MPS-based simulation with implicit obstacles is the lack of boundary particles that are required for the computation of two quantities: particle number density and particle force determined by pressure field. In our formulation, new definitions of the two quantities giving good estimation of the original ones is developed and incorporated in the MPS algorithm. In addition, we provide a modified algorithm for the construction of discrete linear system specific to the implicit representation for the computation of particle pressure. Our numerical tests show that the proposed approximation techniques provide adequate particle motion at the vicinity of the implicitly defined obstacles.

Computational Fluid and Solid Mechanics

Computational Fluid and Solid Mechanics
Author : K.J. Bathe
Publisher : Elsevier
Release Date : 2001-05-21
Category : Science
Total pages :1768
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The MIT mission - "to bring together Industry and Academia and to nurture the next generation in computational mechanics is of great importance to reach the new level of mathematical modeling and numerical solution and to provide an exciting research environment for the next generation in computational mechanics." Mathematical modeling and numerical solution is today firmly established in science and engineering. Research conducted in almost all branches of scientific investigations and the design of systems in practically all disciplines of engineering can not be pursued effectively without, frequently, intensive analysis based on numerical computations. The world we live in has been classified by the human mind, for descriptive and analysis purposes, to consist of fluids and solids, continua and molecules; and the analyses of fluids and solids at the continuum and molecular scales have traditionally been pursued separately. Fundamentally, however, there are only molecules and particles for any material that interact on the microscopic and macroscopic scales. Therefore, to unify the analysis of physical systems and to reach a deeper understanding of the behavior of nature in scientific investigations, and of the behavior of designs in engineering endeavors, a new level of analysis is necessary. This new level of mathematical modeling and numerical solution does not merely involve the analysis of a single medium but must encompass the solution of multi-physics problems involving fluids, solids, and their interactions, involving multi-scale phenomena from the molecular to the macroscopic scales, and must include uncertainties in the given data and the solution results. Nature does not distinguish between fluids and solids and does not ever repeat itself exactly. This new level of analysis must also include, in engineering, the effective optimization of systems, and the modeling and analysis of complete life spans of engineering products, from design to fabrication, to possibly multiple repairs, to end of service.

Nuclear Power Plant Design and Analysis Codes

Nuclear Power Plant Design and Analysis Codes
Author : Jun Wang,Xin Li,Chris Allison,Judy Hohorst
Publisher : Woodhead Publishing
Release Date : 2020-11-10
Category : Technology & Engineering
Total pages :608
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Nuclear Power Plant Design and Analysis Codes: Development, Validation, and Application presents the latest research on the most widely used nuclear codes and the wealth of successful accomplishments which have been achieved over the past decades by experts in the field. Editors Wang, Li,Allison, and Hohorst and their team of authors provide readers with a comprehensive understanding of nuclear code development and how to apply it to their work and research to make their energy production more flexible, economical, reliable and safe. Written in an accessible and practical way, each chapter considers strengths and limitations, data availability needs, verification and validation methodologies and quality assurance guidelines to develop thorough and robust models and simulation tools both inside and outside a nuclear setting. This book benefits those working in nuclear reactor physics and thermal-hydraulics, as well as those involved in nuclear reactor licensing. It also provides early career researchers with a solid understanding of fundamental knowledge of mainstream nuclear modelling codes, as well as the more experienced engineers seeking advanced information on the best solutions to suit their needs. Captures important research conducted over last few decades by experts and allows new researchers and professionals to learn from the work of their predecessors Presents the most recent updates and developments, including the capabilities, limitations, and future development needs of all codes Incudes applications for each code to ensure readers have complete knowledge to apply to their own setting.

Computational Mechanics

Computational Mechanics
Author : Zhenhan Yao,M. W. Yuan
Publisher : 清华大学出版社有限公司
Release Date : 2004
Category : Engineering design
Total pages :1286
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Medicine Meets Virtual Reality 16

Medicine Meets Virtual Reality 16
Author : James D. Westwood
Publisher : IOS Press
Release Date : 2008-01-01
Category : Medical
Total pages :574
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We humans are tribal, grouping ourselves by a multitude of criteria: physical, intellectual, political, emotional, etc. The Internet and its auxiliary technologies have enabled a novel dimension in tribal behavior during our recent past. This growing connectivity begs the question: will individuals and their communities come together to solve some very urgent global problems? At MMVR, we explore ways to harness information technology to solve healthcare problems - and in the industrialized nations we are making progress. In the developing world however, things are more challenging. Massive urban poverty fuels violence and misery. Will global networking bring a convergence of individual and tribal problem-solving? Recently, a barrel-shaped water carrier that rolls along the ground was presented, improving daily life for many people. Also the One Laptop per Child project is a good example of how the industrialized nations can help the developing countries. They produce durable and simple laptops which are inexpensive to produce. At MMVR, we focus on cutting-edge medical technology, which is generally pretty expensive. While the benefits of innovation trickle downward, from the privileged few to the broader masses, we should expand this trickle into a flood. Can breakthrough applications in stimulation, visualization, robotics, and informatics engender tools as ingeniously as the water carrier or laptop? With some extra creativity, we can design better healthcare for the developing world too.

Frontiers of Discontinuous Numerical Methods and Practical Simulations in Engineering and Disaster Prevention

Frontiers of Discontinuous Numerical Methods and Practical Simulations in Engineering and Disaster Prevention
Author : Guangqi Chen,Yuzo Ohnishi,Lu Zheng,Takeshi Sasaki
Publisher : CRC Press
Release Date : 2013-08-12
Category : Technology & Engineering
Total pages :552
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Analysis of large deformation, rigid body movement and strain or stress for discontinuous materials is often required for project designs and plans in the fields of engineering and disaster prevention. Many numerical simulation and analysis methods have been developed for the requirement from science and technology people since 1970s. Among them, D

Soil Stress-Strain Behavior: Measurement, Modeling and Analysis

Soil Stress-Strain Behavior: Measurement, Modeling and Analysis
Author : Hoe I. Ling,Luigi Callisto,Dov Leshchinsky,Junichi Koseki
Publisher : Springer Science & Business Media
Release Date : 2007-11-28
Category : Science
Total pages :989
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The material in this work is focused on recent developments in research into the stress-strain behavior of geomaterials, with an emphasis on laboratory measurements, soil constitutive modeling and behavior of soil structures (such as reinforced soils, piles and slopes). The latest advancements in the field, such as the rate effect and dynamic behavior of both clay and sand, behavior of modified soils and soil mixtures, and soil liquefaction are addressed.

3D Simulation of Eutectic Interaction of Pb–Sn System Using Moving Particle Semi-implicit (MPS) Method

3D Simulation of Eutectic Interaction of Pb–Sn System Using Moving Particle Semi-implicit (MPS) Method
Author : Anonim
Publisher : Unknown
Release Date : 2015
Category :
Total pages :129
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Highlights: Development of MPS eutectic model for solid–solid interaction. Analysis of experiments dealing with eutectic behavior of Pb–Sn by MPS simulation. The analysis has revealed the mechanism of eutectic melting due to eutectic reaction. Abstract: The eutectic reaction phenomenon was analyzed based on the Moving Particle Semi-implicit (MPS) method. The improved MPS code was applied to three-dimensional Pb–Sn system experiments conducted at Central Research Institute of Electric Power Industry (CRIEPI). The experiments dealt with solid–solid contact materials at 225 and 205 °C. The mass diffusion process was modeled based on Fick's second law. The criterion of eutectic reaction was modeled based on binary phase diagram. The calculated penetration rates, i.e. height reduction rates, were compared with the experimental measurements. The results obtained by the MPS simulations exhibit good agreement with the experiments carried out at 205 and 225 °C. MPS simulation predicted that Sn particle will liquefy earlier than Pb particle.

2019 IEEE 11th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management ( HNICEM )

2019 IEEE 11th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management ( HNICEM )
Author : IEEE Staff
Publisher : Unknown
Release Date : 2019-11-29
Category :
Total pages :129
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Engineering, Computing, Computer Science

Medicine Meets Virtual Reality 18

Medicine Meets Virtual Reality 18
Author : James D. Westwood
Publisher : IOS Press
Release Date : 2011
Category : Medical
Total pages :769
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Since the debut of the Medicine Meets Virtual Reality (MMVR) conference in 1992, MMVR has served as a forum for researchers harnessing IT advances for the benefit of patient diagnosis and care, medical education and procedural training. At MMVR, virtual reality becomes a theatre for medicine, where multiple senses are engaged - sight, sound and touch - and language and image fuse. Precisely because this theatre is unreal, it is a valuable tool: the risks of experimentation and failure are gone, while the opportunity to understand remains. Improvement of this tool, through steady technological progress, is the purpose of MMVR. This book presents papers delivered at the MMVR18 / NextMed conference, held in Newport Beach, California, in February 2011, with contributions from international researchers whose work creates new devices and methods at the juncture of informatics and medicine. Subjects covered include simulation and learning, visualization and information-guided therapy, robotics and haptics, virtual reality and advanced ICT in Europe, validation of new surgical techniques, and many other applications of virtual-reality technology. As its name suggests, the NextMed conference looks forward to the expanding role that virtual reality can play in global healthcare. This overview of current technology will interest those who dedicate themselves to improving medicine through technology.

Hydraulics of Dam and River Structures

Hydraulics of Dam and River Structures
Author : Farhad Yazdandoost,Jalal Attari
Publisher : Taylor & Francis
Release Date : 2004-08-01
Category : Science
Total pages :460
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This book comprises the papers of the International Conference on Hydraulics of Dams and Rivers Structures, held in Tehran, 26-28 April 2004. The topics covered include air-water flows, intakes and outlets, hydrodynamic forces, energy dissipators, stepped spillways, scouring and sedimentation around structures, numerical approaches in river hydrodynamics, river response to hydraulic structures and hydroinformatic applications. This proceedings provides professionals and researchers with news of interdisciplinary research findings, considering future development of the sector in its many and various applications.

Advances in Numerical Simulation of Nonlinear Water Waves

Advances in Numerical Simulation of Nonlinear Water Waves
Author : Qingwei Ma
Publisher : World Scientific
Release Date : 2010
Category : Mathematics
Total pages :700
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Most of the Earth''s surface is covered by water. Our everyday lives and activities are affected by water waves in oceans, such as the tsunami that occurred in the Indian Ocean on 26 December 2004. This indicates how important it is for us to fully understand water waves, in particular the very large ones. One way to do so is to perform numerical simulation based on the nonlinear theory. Considerable research advances have been made in this area over the past decade by developing various numerical methods and applying them to emerging problems; however, until now there has been no comprehensive book to reflect these advances. This unique volume aims to bridge this gap. This book contains 18 self-contained chapters written by more than 50 authors from 12 different countries, many of whom are world-leading experts in the field. Each chapter is based mainly on the pioneering work of the authors and their research teams over the past decades.The chapters altogether deal with almost all numerical methods that have so far been employed to simulate nonlinear water waves and cover many important and very interesting applications, such as overturning waves, breaking waves, waves generated by landslides, freak waves, solitary waves, tsunamis, sloshing waves, interaction of extreme waves with beaches, interaction with fixed structures, and interaction with free-response floating structures. Therefore, this book provides a comprehensive overview of the state-of-the-art research and key achievements in numerical modeling of nonlinear water waves, and serves as a unique reference for postgraduates, researchers and senior engineers working in industry.

Engineering Geology for Society and Territory - Volume 4

Engineering Geology for Society and Territory - Volume 4
Author : Giorgio Lollino,Andrea Manconi,Jacques Locat,Yu Huang,Miquel Canals Artigas
Publisher : Springer
Release Date : 2014-08-12
Category : Science
Total pages :235
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This book is one out of 8 IAEG XII Congress volumes, and deals with the processes occurring on the coastal zone, which represents a critical interface between land and sea, as the contribution of the ocean to the provision of energy and mineral resources will likely increase in the coming decades. Several related topics fit into this volume, such as: coastal developments and infrastructures; dredging and beach re-nourishment; sediment erosion, transport and accumulation; geohazard assessment; seafloor uses; seabed mapping; exploration and exploitation of the seafloor, of the sub-seafloor, and of marine clean energies and climatic and anthropogenic impacts on coastal and marine environments. Examples of specific themes are coastal management and shore protection, taking into account storm-related events and natural and anthropogenic changes in the relative sea level, planning of waste disposal, remedial works for coastal pollution, seafloor pipeline engineering, slope stability analysis, or tsunami propagation and flooding. The Engineering Geology for Society and Territory volumes of the IAEG XII Congress held in Torino from September 15-19, 2014, analyze the dynamic role of engineering geology in our changing world and build on the four main themes of the congress: environment, processes, issues and approaches. The congress topics and subject areas of the 8 IAEG XII Congress volumes are: 1. Climate Change and Engineering Geology 2. Landslide Processes River Basins 3. Reservoir Sedimentation and Water Resources 4. Marine and Coastal Processes Urban Geology 5. Sustainable Planning and Landscape Exploitation 6. Applied Geology for Major Engineering Projects 7. Education, Professional Ethics and Public Recognition of Engineering Geology 8. Preservation of Cultural Heritage.