Continuum Gyrokinetic Edge New Technology

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Continuum Gyrokinetic Edge New Technology

Author :
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ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (958 download)

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Download or read book Continuum Gyrokinetic Edge New Technology written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: COGENT is a simulation code that models the plasma evolution in the edge region of a tokamak fusion reactor, from the open field line scrape-off layer, across the separatrix, and into the core. The model is based on the 4D gyrokinetic closure of the kinetic equations for a plasma coupled to an electrostatic potential field. The background magnetic field is prescribed either analytically or generated from experimental data, and the grid is aligned with magnetic flux surfaces. Multiple collision operator options are provided, from Krook to fully nonlinear Fokker-Planck.

Edge Gyrokinetic Theory and Continuum Simulations

Author :
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (727 download)

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Download or read book Edge Gyrokinetic Theory and Continuum Simulations written by and published by . This book was released on 2007 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Continuum Edge Gyrokinetic Theory and Simulations

Author :
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (727 download)

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Download or read book Continuum Edge Gyrokinetic Theory and Simulations written by and published by . This book was released on 2007 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The following results are presented from the development and application of TEMPEST, a fully nonlinear (full-f) five dimensional (3d2v) gyrokinetic continuum edge-plasma code. (1) As a test of the interaction of collisions and parallel streaming, TEMPEST is compared with published analytic and numerical results for endloss of particles confined by combined electrostatic and magnetic wells. Good agreement is found over a wide range of collisionality, confining potential, and mirror ratio; and the required velocity space resolution is modest. (2) In a large-aspect-ratio circular geometry, excellent agreement is found for a neoclassical equilibrium with parallel ion flow in the banana regime with zero temperature gradient and radial electric field. (3) The four-dimensional (2d2v) version of the code produces the first self-consistent simulation results of collisionless damping of geodesic acoustic modes and zonal flow (Rosenbluth-Hinton residual) with Boltzmann electrons using a full-f code. The electric field is also found to agree with the standard neoclassical expression for steep density and ion temperature gradients in the banana regime. In divertor geometry, it is found that the endloss of particles and energy induces parallel flow stronger than the core neoclassical predictions in the SOL. (5) Our 5D gyrokinetic formulation yields a set of nonlinear electrostatic gyrokinetic equations that are for both neoclassical and turbulence simulations.

Status of Continuum Edge Gyrokinetic Code Physics Development

Author :
Publisher :
ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (871 download)

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Book Synopsis Status of Continuum Edge Gyrokinetic Code Physics Development by :

Download or read book Status of Continuum Edge Gyrokinetic Code Physics Development written by and published by . This book was released on 2005 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are developing an edge gyro-kinetic continuum simulation code to study the boundary plasma over a region extending from inside the H-mode pedestal across the separatrix to the divertor plates. A 4-D ([psi], [theta], [epsilon], [mu]) version of this code is presently being implemented, en route to a full 5-D version. A set of gyrokinetic equations[1] are discretized on computational grid which incorporates X-point divertor geometry. The present implementation is a Method of Lines approach where the phase-space derivatives are discretized with finite differences and implicit backwards differencing formulas are used to advance the system in time. A fourth order upwinding algorithm is used for particle cross-field drifts, parallel streaming, and acceleration. Boundary conditions at conducting material surfaces are implemented on the plasma side of the sheath. The Poisson-like equation is solved using GMRES with multi-grid preconditioner from HYPRE. A nonlinear Fokker-Planck collision operator from STELLA[2] in ([nu]{sub {parallel}}, [nu]{sub {perpendicular}}) has been streamlined and integrated into the gyro-kinetic package using the same implicit Newton-Krylov solver and interpolating F and dF/dt.

Simulation of Neoclassical Transport with the Continuum Gyrokinetic Code COGENT.

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Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (951 download)

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Book Synopsis Simulation of Neoclassical Transport with the Continuum Gyrokinetic Code COGENT. by :

Download or read book Simulation of Neoclassical Transport with the Continuum Gyrokinetic Code COGENT. written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Progress with the COGENT Edge Kinetic Code

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Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (951 download)

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Book Synopsis Progress with the COGENT Edge Kinetic Code by :

Download or read book Progress with the COGENT Edge Kinetic Code written by and published by . This book was released on 2012 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Computational Methods in Plasma Physics

Author : Stephen Jardin
Publisher : CRC Press
ISBN 13 : 9781439810958
Total Pages : 372 pages
Book Rating : 4.8/5 (19 download)

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Book Synopsis Computational Methods in Plasma Physics by : Stephen Jardin

Download or read book Computational Methods in Plasma Physics written by Stephen Jardin and published by CRC Press. This book was released on 2010-06-02 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: Assuming no prior knowledge of plasma physics or numerical methods, Computational Methods in Plasma Physics covers the computational mathematics and techniques needed to simulate magnetically confined plasmas in modern magnetic fusion experiments and future magnetic fusion reactors. Largely self-contained, the text presents the basic concepts neces

Continuum Kinetic Modeling of the Tokamak Plasma Edge

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Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (982 download)

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Download or read book Continuum Kinetic Modeling of the Tokamak Plasma Edge written by and published by . This book was released on 2016 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, the first 4D (axisymmetric) high-order continuum gyrokinetic transport simulations that span the magnetic separatrix of a tokamak are presented. The modeling is performed with the COGENT code, which is distinguished by fourth-order finite-volume discretization combined with mapped multiblock grid technology to handle the strong anisotropy of plasmatransport and the complex X-point divertor geometry with high accuracy. The calculations take into account the effects of fully nonlinear Fokker-Plank collisions, electrostatic potential variations, and anomalous radial transport. Topics discussed include: (a) ion orbit loss and the associated toroidal rotation and (b) edge plasma relaxation in the presence of anomalous radial transport.

Parallel Computing: Technology Trends

Author : I. Foster
Publisher : IOS Press
ISBN 13 : 1643680714
Total Pages : 806 pages
Book Rating : 4.6/5 (436 download)

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Book Synopsis Parallel Computing: Technology Trends by : I. Foster

Download or read book Parallel Computing: Technology Trends written by I. Foster and published by IOS Press. This book was released on 2020-03-25 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: The year 2019 marked four decades of cluster computing, a history that began in 1979 when the first cluster systems using Components Off The Shelf (COTS) became operational. This achievement resulted in a rapidly growing interest in affordable parallel computing for solving compute intensive and large scale problems. It also directly lead to the founding of the Parco conference series. Starting in 1983, the International Conference on Parallel Computing, ParCo, has long been a leading venue for discussions of important developments, applications, and future trends in cluster computing, parallel computing, and high-performance computing. ParCo2019, held in Prague, Czech Republic, from 10 – 13 September 2019, was no exception. Its papers, invited talks, and specialized mini-symposia addressed cutting-edge topics in computer architectures, programming methods for specialized devices such as field programmable gate arrays (FPGAs) and graphical processing units (GPUs), innovative applications of parallel computers, approaches to reproducibility in parallel computations, and other relevant areas. This book presents the proceedings of ParCo2019, with the goal of making the many fascinating topics discussed at the meeting accessible to a broader audience. The proceedings contains 57 contributions in total, all of which have been peer-reviewed after their presentation. These papers give a wide ranging overview of the current status of research, developments, and applications in parallel computing.

Collisional Transport in Magnetized Plasmas

Author : Per Helander
Publisher : Cambridge University Press
ISBN 13 : 9780521020985
Total Pages : 316 pages
Book Rating : 4.0/5 (29 download)

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Book Synopsis Collisional Transport in Magnetized Plasmas by : Per Helander

Download or read book Collisional Transport in Magnetized Plasmas written by Per Helander and published by Cambridge University Press. This book was released on 2005-10-06 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: A graduate level text treating transport theory, an essential element of theoretical plasma physics.

Plasma Science

Author : National Academies of Sciences Engineering and Medicine
Publisher :
ISBN 13 : 9780309677608
Total Pages : 291 pages
Book Rating : 4.6/5 (776 download)

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Book Synopsis Plasma Science by : National Academies of Sciences Engineering and Medicine

Download or read book Plasma Science written by National Academies of Sciences Engineering and Medicine and published by . This book was released on 2021-02-28 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasma Science and Engineering transforms fundamental scientific research into powerful societal applications, from materials processing and healthcare to forecasting space weather. Plasma Science: Enabling Technology, Sustainability, Security and Exploration discusses the importance of plasma research, identifies important grand challenges for the next decade, and makes recommendations on funding and workforce. This publication will help federal agencies, policymakers, and academic leadership understand the importance of plasma research and make informed decisions about plasma science funding, workforce, and research directions.

Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition

Author :
Publisher : ScholarlyEditions
ISBN 13 : 1490110437
Total Pages : 1163 pages
Book Rating : 4.4/5 (91 download)

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Book Synopsis Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition by :

Download or read book Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition written by and published by ScholarlyEditions. This book was released on 2013-05-01 with total page 1163 pages. Available in PDF, EPUB and Kindle. Book excerpt: Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition is a ScholarlyEditions™ book that delivers timely, authoritative, and comprehensive information about High Energy Physics. The editors have built Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about High Energy Physics in this book to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2013 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

Controlled Fusion and Plasma Physics

Author : Kenro Miyamoto
Publisher : Taylor & Francis
ISBN 13 : 1584887109
Total Pages : 393 pages
Book Rating : 4.5/5 (848 download)

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Book Synopsis Controlled Fusion and Plasma Physics by : Kenro Miyamoto

Download or read book Controlled Fusion and Plasma Physics written by Kenro Miyamoto and published by Taylor & Francis. This book was released on 2006-10-23 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Resulting from ongoing, international research into fusion processes, the International Tokamak Experimental Reactor (ITER) is a major step in the quest for a new energy source.The first graduate-level text to cover the details of ITER, Controlled Fusion and Plasma Physics introduces various aspects and issues of recent fusion research activ

Theory of Fusion Plasmas

Author : Olivier Sauter
Publisher : American Institute of Physics
ISBN 13 : 9780735406001
Total Pages : 400 pages
Book Rating : 4.4/5 (6 download)

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Book Synopsis Theory of Fusion Plasmas by : Olivier Sauter

Download or read book Theory of Fusion Plasmas written by Olivier Sauter and published by American Institute of Physics. This book was released on 2008-12-02 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas takes place every other year in a place particularly favorable for informal and in depth discussions. Invited and contributed papers present state-of-the art researches in theoretical plasma physics, covering all domains relevant to fusion plasmas. This workshop always allows a fruitful mix of experienced researchers and students, to allow for a better understanding of the key theoretical physics models and applications, such as: Theoretical issues related to burning plasmas; Anomalous Transport (Turbulence, Coherent Structures, Microinstabilities) RF Heating and Current Drive; Macroinstabilities; Plasma-Edge Physics and Divertors; Fast particles instabilities.

Energy Research Abstracts

Author :
Publisher :
ISBN 13 :
Total Pages : 490 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Energy Research Abstracts by :

Download or read book Energy Research Abstracts written by and published by . This book was released on 1993 with total page 490 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Power Exhaust in Fusion Plasmas

Author : Wojciech Fundamenski
Publisher : Cambridge University Press
ISBN 13 : 0521851718
Total Pages : 445 pages
Book Rating : 4.5/5 (218 download)

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Book Synopsis Power Exhaust in Fusion Plasmas by : Wojciech Fundamenski

Download or read book Power Exhaust in Fusion Plasmas written by Wojciech Fundamenski and published by Cambridge University Press. This book was released on 2010 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete and up-to-date summary of power exhaust in fusion plasmas, for academic researchers and graduate students in plasma physics.

Crystal Defects and Crystalline Interfaces

Author : Walter Bollmann
Publisher : Springer Science & Business Media
ISBN 13 : 3642491731
Total Pages : 264 pages
Book Rating : 4.6/5 (424 download)

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Book Synopsis Crystal Defects and Crystalline Interfaces by : Walter Bollmann

Download or read book Crystal Defects and Crystalline Interfaces written by Walter Bollmann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is nonnal for the preface to explain the motivation behind the writing of the book. Since many good books dealing with the general theory of crystal defects already exist, a new book has to be especially justified, and here its main justification lies in its treatment of crystal line interfaces. About 1961, the work of the author, essentially based on the fundamental work of Professor F. C. Frank, started to branch away from the main flow of thought in this field and eventually led to a general geometrical theory which is presented as a whole for the first time in this book. Although nearly all that is presented has already been published in different journals and symposia, it might be difficult for the reader to follow that literature, as a new terminology and new methods of analysis had to be developed. Special emphasis is given to discussion and many diagrams are included in order that a clear view of the basic concepts be obtained. Intennediate summaries try to bring out the main points of the chapters. Instead of specific exercises, general suggestions for them are given. The part up to chapter 9 is considered more or less as introductory, so that the book can be studied without specific knowledge of crystals and crystal defects. The presentation of that part developed out of lectures given by the author at the Swiss Federal Institute of Technology (ETH) in Zurich.