Recent Advances in Computational Sciences

Selected Papers from the International Workshop on Computational Sciences and Its Education, Beijing, China, 29-31 August 2005

Author: Palle E. T. J?rgensen,Xiaoping Shen,Chiwang Shu

Publisher: World Scientific

ISBN: 981270700X

Category: Science

Page: 381

View: 4684

This book presents state-of-the-art lectures delivered by international academic and industrial experts in the field of computational science and its education, covering a wide spectrum from theory to practice. Topics include new developments in finite element method (FEM), finite volume method and Spline theory, such as Moving Mesh Methods, Galerkin and Discontinuous Galerkin Schemes, Shape Gradient Methods, Mixed FEMs, Superconvergence techniques and Fourier spectral approximations with applications in multidimensional fluid dynamics; Maxwell equations in discrepancy media; and phase-field equations. It also discusses some interesting topics related to Stokes equations, Schr”dinger equations, wavelet analysis and approximation theory. Contemporary teaching issues in curriculum reform also form an integral part of the book.This book will therefore be of significant interest and value to all graduates, research scientists and practitioners facing complex computational problems. Administrators and policymakers will find it is an addition to their mathematics curriculum reform libraries.

DCDS-A

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Mathematics

Page: N.A

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Computational Fluid Dynamics 2008

Author: Haecheon Choi,H. G. Choi,J. Y. Yoo

Publisher: Springer Science & Business Media

ISBN: 3642012736

Category: Technology & Engineering

Page: 822

View: 1298

We are delighted to present this book which contains the Proceedings of the Fifth International Conference on Computational Fluid Dynamics (ICCFD5), held in Seoul, Korea from July 7 through 11, 2008. The ICCFD series has established itself as the leading international conference series for scientists, mathematicians, and engineers specialized in the computation of fluid flow. In ICCFD5, 5 Invited Lectures and 3 Keynote Lectures were delivered by renowned researchers in the areas of innovative modeling of flow physics, innovative algorithm development for flow simulation, optimization and control, and advanced multidisciplinary - plications. There were a total of 198 contributed abstracts submitted from 25 countries. The executive committee consisting of C. H. Bruneau (France), J. J. Chattot (USA), D. Kwak (USA), N. Satofuka (Japan), and myself, was responsible for selection of papers. Each of the members had a separate subcommittee to carry out the evaluation. As a result of this careful peer review process, 138 papers were accepted for oral presentation and 28 for poster presentation. Among them, 5 (3 oral and 2 poster presentation) papers were withdrawn and 10 (4 oral and 6 poster presentation) papers were not presented. The conference was attended by 201 delegates from 23 countries. The technical aspects of the conference were highly beneficial and informative, while the non-technical aspects were fully enjoyable and memorable. In this book, 3 invited lectures and 1 keynote lecture appear first. Then 99 c- tributed papers are grouped under 21 subject titles which are in alphabetical order.

Computational Fluid Dynamics 2006

Proceedings of the Fourth International Conference on Computational Fluid Dynamics, ICCFD4, Ghent, Belgium, 10-14 July 2006

Author: Herman Deconinck,E. Dick

Publisher: Springer Science & Business Media

ISBN: 9783540927792

Category: Technology & Engineering

Page: 893

View: 8329

The International Conference on Computational Fluid Dynamics (ICCFD) is the merger of the International Conference on Numerical Methods in Fluid Dynamics, ICNMFD (since 1969) and International Symposium on Computational Fluid Dynamics, ISCFD (since 1985). It is held every two years and brings together physicists, mathematicians and engineers to review and share recent advances in mathematical and computational techniques for modeling fluid dynamics. The proceedings of the 2006 conference (ICCFD4) held in Gent, Belgium, contain a selection of refereed contributions and are meant to serve as a source of reference for all those interested in the state of the art in computational fluid mechanics.

Numerical Methods for Conservation Laws

Author: Randall J. LeVeque

Publisher: Springer Science & Business Media

ISBN: 9783764327231

Category: Mathematics

Page: 214

View: 5553

These notes were developed for a graduate-level course on the theory and numerical solution of nonlinear hyperbolic systems of conservation laws. Part I deals with the basic mathematical theory of the equations: the notion of weak solutions, entropy conditions, and a detailed description of the wave structure of solutions to the Riemann problem. The emphasis is on tools and techniques that are indispensable in developing good numerical methods for discontinuous solutions. Part II is devoted to the development of high resolution shock-capturing methods, including the theory of total variation diminishing (TVD) methods and the use of limiter functions. The book is intended for a wide audience, and will be of use both to numerical analysts and to computational researchers in a variety of applications.

Computational Fluid Dynamics in Practice

Author: Norman Rhodes

Publisher: Wiley

ISBN: N.A

Category: Science

Page: 200

View: 2332

Computational Fluid Dynamics in Practice explores the current and future developments in CFD, with the authors detailing advanced applications and case studies to demonstrate successes, illustrate the limitations, and identify methods for good practice. Designers, engineers, and researchers working in this field of fluid mechanics will find this book essential reading both for new ideas and applications, as well as a valuable source of reference. CONTENTS INCLUDE: The issue of numerical accuracy in computational fluid dynamics Detection of multiple solutions using a mid-cell back substitution technique applied to computational fluid dynamics A comparison of a conventional RANS and a lattice gas dynamics simulation – a case study in high-speed rail aerodynamics Mesh generation – The Ricardo Philosophy The validation of rapid CFD modelling for turbomachinery Built environment simulations using CFD Using CFD in the design of electric motors and generators CFD computation of air-oil separation in an engine breather Cavitation in a pressure-activated ball valve.

Mathematical Methods and Modelling in Hydrocarbon Exploration and Production

Author: Armin Iske,Trygve Randen

Publisher: Springer Science & Business Media

ISBN: 3540264930

Category: Mathematics

Page: 452

View: 9182

Hydrocarbon exploration and production incorporate great technology challenges for the oil and gas industry. In order to meet the world's future demand for oil and gas, further technological advance is needed, which in turn requires research across multiple disciplines, including mathematics, geophysics, geology, petroleum engineering, signal processing, and computer science. This book addresses important aspects and fundamental concepts in hydrocarbon exploration and production. Moreover, new developments and recent advances in the relevant research areas are discussed, whereby special emphasis is placed on mathematical methods and modelling. The book reflects the multi-disciplinary character of the hydrocarbon production workflow, ranging from seismic data imaging, seismic analysis and interpretation and geological model building, to numerical reservoir simulation. Various challenges concerning the production workflow are discussed in detail. The thirteen chapters of this joint work, authored by international experts from academic and industrial institutions, include survey papers of expository character as well as original research articles. Large parts of the material presented in this book were developed between November 2000 and April 2004 through the European research and training network NetAGES, "Network for Automated Geometry Extraction from Seismic". The new methods described here are currently being implemented as software tools at Schlumberger Stavanger Research, one of the world's largest service providers to the oil industry.

Wave Propagation in Fluids

Models and Numerical Techniques

Author: Vincent Guinot

Publisher: John Wiley & Sons

ISBN: 1118587634

Category: Science

Page: 560

View: 4650

This second edition with four additional chapters presents thephysical principles and solution techniques for transientpropagation in fluid mechanics and hydraulics. The applicationdomains vary including contaminant transport with or withoutsorption, the motion of immiscible hydrocarbons in aquifers, pipetransients, open channel and shallow water flow, and compressiblegas dynamics. The mathematical formulation is covered from the angle ofconservation laws, with an emphasis on multidimensional problemsand discontinuous flows, such as steep fronts and shock waves. Finite difference-, finite volume- and finite element-basednumerical methods (including discontinuous Galerkin techniques) arecovered and applied to various physical fields. Additional chaptersinclude the treatment of geometric source terms, as well as directand adjoint sensitivity modeling for hyperbolic conservation laws.A concluding chapter is devoted to practical recommendations to themodeler. Application exercises with on-line solutions are proposed at theend of the chapters.

Modeling Shallow Water Flows Using the Discontinuous Galerkin Method

Author: Abdul A. Khan,Wencong Lai

Publisher: CRC Press

ISBN: 1482226014

Category: Science

Page: 215

View: 582

Replacing the Traditional Physical Model Approach Computational models offer promise in improving the modeling of shallow water flows. As new techniques are considered, the process continues to change and evolve. Modeling Shallow Water Flows Using the Discontinuous Galerkin Method examines a technique that focuses on hyperbolic conservation laws and includes one-dimensional and two-dimensional shallow water flows and pollutant transports. Combines the Advantages of Finite Volume and Finite Element Methods This book explores the discontinuous Galerkin (DG) method, also known as the discontinuous finite element method, in depth. It introduces the DG method and its application to shallow water flows, as well as background information for implementing and applying this method for natural rivers. It considers dam-break problems, shock wave problems, and flows in different regimes (subcritical, supercritical, and transcritical). Readily Adaptable to the Real World While the DG method has been widely used in the fields of science and engineering, its use for hydraulics has so far been limited to simple cases. The book compares numerical results with laboratory experiments and field data, and includes a set of tests that can be used for a wide range of applications. Provides step-by-step implementation details Presents the different forms in which the shallow water flow equations can be written Places emphasis on the details and modifications required to apply the scheme to real-world flow problems This text enables readers to readily understand and develop an efficient computer simulation model that can be used to model flow, contaminant transport, and other aspects in rivers and coastal environments. It is an ideal resource for practicing environmental engineers and researchers in the area of computational hydraulics and fluid dynamics, and graduate students in computational hydraulics.

Proceedings

Mathematical, physical, and engineering sciences

Author: N.A

Publisher: N.A

ISBN: N.A

Category: Engineering

Page: N.A

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Godunov-type Schemes

An Introduction for Engineers

Author: V. Guinot

Publisher: Elsevier

ISBN: 9780080532585

Category: Mathematics

Page: 508

View: 2218

Godunov-type schemes appear as good candidates for the next generation of commercial modelling software packages, the capability of which to handle discontinuous solution will be a basic requirement. It is in the interest of practising engineers and developers to be familiar with the specific features of discontinuous wave propagation problems and to be aware of the possibilities offered by Godunov-type schemes for their solution. This book aims to present the principles of such schemes in a way that is easily understandable to practising engineers. The features of hyperbolic conservation laws and their solutions are presented in the first two chapters. The principles of Godunov-type schemes are outlined in a third chapter. Chapters 4 and 5 cover the application of the original Godunov scheme to scalar laws and to hyperbolic systems of conservation laws respectively. Chapter 6 is devoted to higher-order schemes in one dimension of space. The design of such a scheme is described for the general case and applied to some well-known schemes such as the MUSCL and PPM schemes. Chapter 7 focuses on multidimensional problems. The classical alternate directions and finite volume approaches are presented together with the wave splitting technique that is described in depth with an application to two-dimensional systems. Chapter 8 deals with large-time step algorithms. These include front tracking-based methods, explicit-implicit techniques and the time-line interpolation technique. Three appendices provide notions on accuracy and stability issues, Riemann solvers and the user instructions for the computational codes provided in the enclosed CD-ROM.