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Author : Michael James Grapperhaus
Publisher :
ISBN 13 :
Total Pages : 232 pages
Book Rating : 4.:/5 (44 download)
Download or read book Multi Scale Transport Phenomena in Low-pressure Plasmas written by Michael James Grapperhaus and published by . This book was released on 1998 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : V.A. Rozhansky
Publisher : CRC Press
ISBN 13 : 1482288095
Total Pages : 488 pages
Book Rating : 4.4/5 (822 download)
Download or read book Transport Phenomena in Partially Ionized Plasma written by V.A. Rozhansky and published by CRC Press. This book was released on 2001-11-22 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport phenomena in plasmas are the relatively slow processes of particle momentum and energy transport systems in a state of mechanical equilibrium. In contrast to neutral gases, these phenomena in plasmas are greatly influenced by self-consistent fields, in particular electric fields. These can produce particle and energy fluxes, in addition t
Author : Yukitoshi Nishimura
Publisher : Elsevier
ISBN 13 : 0128213736
Total Pages : 566 pages
Book Rating : 4.1/5 (282 download)
Download or read book Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System written by Yukitoshi Nishimura and published by Elsevier. This book was released on 2021-12-07 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System provides a systematic understanding of Magnetosphere-Ionosphere-Thermosphere dynamics. Cross-scale coupling has become increasingly important in the Space Physics community. Although large-scale processes can specify the averaged state of the system reasonably well, they cannot accurately describe localized and rapidly varying structures in space in actual events. Such localized and variable structures can be as intense as the large-scale features. This book covers observations on quantifying coupling and energetics and simulation on evaluating impacts of cross-scale processes. It includes an in-depth review and summary of the current status of multi-scale coupling processes, fundamental physics, and concise illustrations and plots that are usable in tutorial presentations and classrooms. Organized by physical quantities in the system, Cross-Scale Coupling and Energy Transfer in the Magnetosphere-Ionosphere-Thermosphere System reviews recent advances in cross-scale coupling and energy transfer processes, making it an important resource for space physicists and researchers working on the magnetosphere, ionosphere, and thermosphere. Describes frontier science and major science around M-I-T coupling, allowing for foundational understanding of this emerging field in space physics Reviews recent and key findings in the cutting-edge of the science Discusses open questions and pathways for understanding how the field is evolving
Author : Vladimir. A. Rozhansky
Publisher : Gordon & Breach Science Publishers
ISBN 13 : 9789056990381
Total Pages : 484 pages
Book Rating : 4.9/5 (93 download)
Download or read book Transport Phenomena in Partially Ionized Plasma written by Vladimir. A. Rozhansky and published by Gordon & Breach Science Publishers. This book was released on 2001-09 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport phenomena in plasmas are the relatively slow process of particle, momentum and energy transport in systems in a state of mechanical equilibrium. In contrast to neutral gases, these phenomena in plasmas are greatly influenced by self-consistent fields in particular electric fields. These can produce particle and energy fluxes, in addition to those generated by the homogeneity of the plasma composition and temperature. As a result, the physical effects accompanying transport phenomena in plasmas are far more numerous and complicated than those in neutral gases, and the solution of corresponding problems is more difficult. The effects however, are usually far more interesting and sometimes surprising.Presenting a systematic survey and analysis of the main mechanism of transport phenomena in plasma this book also gives examples of gradually increasing complexity to illustrate these mechanisms and the relationships between them. Special attention is paid to the analysis of experimentalmeasurements, and the relevant processes are considered analytically as well as qualitatively.Many of the problems dealt with are of considerable practical interest, and the phenomena described often determine the main characteristics of processes and devices. Therefore this book will be of interest to researchers who need to know the properties of real, specific systems, as well as to engineers and advanced students in the physics of plasmas, semiconductors, various types of gas discharges and the ionosphere.
Author : V.M. Zhdanov
Publisher : CRC Press
ISBN 13 : 9780415279208
Total Pages : 294 pages
Book Rating : 4.2/5 (792 download)
Download or read book Transport Processes in Multicomponent Plasma written by V.M. Zhdanov and published by CRC Press. This book was released on 2002-04-11 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport Processes in Multicomponent Plasma is a revised and updated version of the original Russian edition. The book examines transport phenomena in multicomponent plasma and looks at important issues such as partially ionized gases, molecular gas mixtures and methods of calculating kinetic coefficients. It makes a logical progression from simpler to more general problems, and the results presented in the book may be used to calculate the kinetic coefficients of plasma in electric and magnetic fields. The author concludes by describing several practical applications such as electrical conductivity and Hall's effect in MHD-generators. Transport Processes in Multicomponent Plasma will be of interest to advanced students and specialized researchers working in various aspects of plasma physics, including both cold plasmas for industrial research and high temperature plasmas in fusion.
Author : Yunchao Zhang
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (144 download)
Download or read book Transport Properties of Charged Particles in Low Pressure Plasmas written by Yunchao Zhang and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis discusses transport phenomena of charged particles in low pressure plasmas which are of particular interest to electric propulsion systems. Electrons of low collisionality behave nonlocally and their thermodynamic interpretation should be revisited as traditional thermodynamic concepts are based on the collision-dominated local equilibrium. The polytropic process is adapted to nonlocal electron transport during plasma expansion. A conservation relation between electron enthalpy and potential energy is derived from nonlocal electron energy probability functions and verified by previously published measurements in a laboratory helicon double layer thruster. Analysis of the experimental data shows that although the electron transport along a divergent magnetic field is an adiabatic process, it yields a polytropic index of 1.17, which is less than the classic adiabatic index of 5/3. A theoretical perspective of how nonlocal electron energy probability functions determine the polytropic index is investigated through three different bi-Maxwellian distributions. The polytropic index increases when the electron energy probability function becomes more convex and decreases when more concave. The polytropic index of 5/3 corresponds to a Heaviside distribution and is an element of a set of polytropic indices for systems governed by nonlocal particle dynamics. Considering interrelations between the solar wind and laboratory plasmas, a new scenario is hypothesized for the thermodynamic behavior of the solar wind: although the solar electrons give a polytropic index less than 5/3, their actual transport might be adiabatic. Ion beam experiments are carried out in the Chi-Kung reactor implemented with a cylindrical plasma source (cylindrical plasma thruster) or an annular plasma source (annular plasma thruster). The cylindrical plasma thruster can be operated under a high magnetic field mode and a low magnetic field mode. In the high field mode, a bi-directional ion beam travelling in opposite directions is respectively measured in the converging and diverging parts of a magnetic nozzle, exhibiting a very different scenario from the classic one-directional nozzle flow of compressible gases. No ion beam is detected for the low field mode although an axial potential drop exists in the plasma source, for which a correlation between ion beam formation and radial plasma transport at the magnetic throat is revealed. The annular plasma thruster provides an enhanced degree of freedom in terms of electron heating by using either an outer antenna or an inner antenna. Electron transport in the annular system is characterized and compared for the two opposite antenna cases. An annular ion beam is observed downstream of the plasma source for the outer antenna case while not for the inner antenna case. It merges into a solid structure (with the central hollow filled) in the diffusion chamber and a reversed-cone wake is formed behind the inner tube. Transport behavior of an annular plasma is greatly changed from a cylindrical plasma due to the occurrence of an inner wall boundary. Depending on the presence of ion-neutral collisions or not, collisional modeling and collisionless modeling are respectively developed to better understand radial transport of unmagnetized charged particles across annuli. The electrons are in an equilibrium state and assumed to be governed by the Boltzmann relation (equivalent to a Maxwellian equilibrium). The collisional ion transport is described by three mobility governed models: a low field electric field model, an intermediate electric field model and a high electric field model. The collisionless ion transport is studied using the Tonks and Langmuir theory and the solution is expressed in terms of the Maclaurin series approximant and Padé rational approximant. The annular modeling is applied to argon plasmas and discussed for different Paschen numbers and annular geometries.
Author : Radu Balescu
Publisher : CRC Press
ISBN 13 : 9781420034684
Total Pages : 498 pages
Book Rating : 4.0/5 (346 download)
Download or read book Aspects of Anomalous Transport in Plasmas written by Radu Balescu and published by CRC Press. This book was released on 2005-04-01 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anomalous transport is a ubiquitous phenomenon in astrophysical, geophysical and laboratory plasmas; and is a key topic in controlled nuclear fusion research. Despite its fundamental importance and ongoing research interest, a full understanding of anomalous transport in plasmas is still incomplete, due to the complexity of the nonlinear phenomena involved. Aspects in Anomalous Transport in Plasmas is the first book to systematically consider anomalous plasma transport theory and provides a unification of the many theoretical models by emphasizing interrelations between seemingly different methodologies. It is not intended as a catalogue of the vast number of plasma instabilities leading to anomalous transport; instead it chooses a number of these and emphasizes the aspects specifically due to turbulence. After a brief introduction, the microscopic theory of turbulence is discussed, including quasilinear theory and various aspects of renormalization methods, which leads to an understanding of resonance broadening, mode coupling, trajectory correlation and clumps. The second half of the book is devoted to stochiastic tramsport, using methods based on the Langevin equations and on Random Walk theory. This treatment aims at going beyond the traditional limits of weak turbulence, by introducing the recently developed method of decorrelation trajectories, and its application to electrostatic turbulence, magnetic turbulence and zonal flow generation. The final chapter includes very recent work on the nonlocal transport phenomenon.
Author : Andre Balogh
Publisher : Springer
ISBN 13 : 149393547X
Total Pages : 357 pages
Book Rating : 4.4/5 (939 download)
Download or read book Multi-scale Structure Formation and Dynamics in Cosmic Plasmas written by Andre Balogh and published by Springer. This book was released on 2016-02-02 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers eleven coordinated reviews on multi-scale structure formation in cosmic plasmas in the Universe. Observations and theories of plasma structures are presented in all relevant astrophysical contexts, from the Earth’s magnetosphere through heliospheric and galactic scales to clusters of galaxies and the large scale structure of the Universe. Basic processes in cosmic plasmas starting from electric currents and the helicity concept governing the dynamics of magnetic structures in planet magnetospheres, stellar winds, and relativistic plasma outflows like pulsar wind nebulae and Active Galactic Nuclei jets are covered. The multi-wavelength view from the radio to gamma-rays with modern high resolution telescopes discussed in the book reveals a beautiful and highly informative picture of both coherent and chaotic plasma structures tightly connected by strong mutual influence. The authors are all leading scientists in their fields, making this book an authoritative, up‐to‐date and enduring contribution to astrophysics.
Author :
Publisher :
ISBN 13 :
Total Pages : 776 pages
Book Rating : 4.3/5 (91 download)
Download or read book American Doctoral Dissertations written by and published by . This book was released on 2002 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Timothy Bryan Guild
Publisher :
ISBN 13 :
Total Pages : 380 pages
Book Rating : 4.:/5 (319 download)
Download or read book Comparative Studies of Multi-scale Convective Transport Through the Earth's Plasma Sheet written by Timothy Bryan Guild and published by . This book was released on 2007 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: In this dissertation we explore multi-scale, convective transport through the Earth's plasma sheet using in situ observations and global terrestrial magnetospheric simulations. We statistically test the Lyon-Fedder-Mobarry (LFM) global magnetohydrodynamic (MHD) model with observations from the Geotail spacecraft at a variety of spatial and temporal scales within the plasma sheet. These comparisons, in addition to quantifying the LFM range of validity, illuminate model shortcomings and highlight the additional physics necessary to resolve data/model discrepancies. First, we perform the first ever comprehensive validation of the LFM in the plasma sheet. We show that the LFM largely reproduces global, long-term average plasma sheet properties and variability, but we also identify and characterize its systematic deficiencies. We find that the LFM overestimates the average plasma sheet velocity, and show that a portion of this overestimate is reflected in excessive LFM ionospheric transpolar potential (15%), and a portion of it is due to insufficient simulation resolution (15%). By characterizing the LFM plasma sheet velocity distribution as a function of simulation resolution, we find that increased resolution inherently changes the nature of the dynamics and transport within the LFM plasma sheet, bringing it into closer agreement with magnetotail observations containing fast, localized bulk flows. To perform the data/model comparisons described thus far, we construct one of the largest central plasma sheet data set of Geotail observations to date. Using this comprehensive data set, we investigate the equatorial distributions of fast, convective flows and infer that the Earthward extent of the average neutral line, the most likely location of near-Earth reconnection, is convex relative to the Earth and offset toward dusk. Due to the importance of these fast flows to mass, momentum, and energy transport in both the observed and simulated plasma sheets, we use the LFM to establish that locally-reconnecting magnetic lobe field lines initiate simulated "flow channels", explore the instability governing their subsequent evolution, and examine their similarity to observations of bursty bulk flows. This dissertation demonstrates the fruitful augmentation of sparse, statistical plasma sheet data sets with global MHD models, thereby enabling further exploration of the multi-scale nature of convective transport within the global, time-dependent plasma sheet.
Author : James P. Hartnett
Publisher : Elsevier
ISBN 13 : 0080553710
Total Pages : 571 pages
Book Rating : 4.0/5 (85 download)
Download or read book Advances in Heat Transfer written by James P. Hartnett and published by Elsevier. This book was released on 2007-10-09 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Heat Transfer fills the information gap between regularly scheduled journals and university-level textbooks by providing wide-ranging and in-depth review articles. Put simply, this book is essential reading for all mechanical, chemical and industrial engineers working in the field of heat transfer in graduate schools or industry. The articles, which serve as a broad review for experts in the field, will also be of great interest to non-specialists who need to keep up-to-date with the results of the latest research. Provides an overview of review articles on topics of current interest Bridges the gap between academic researchers and practitioners in industry A long-running and prestigious series
Author : David A. Huchital
Publisher :
ISBN 13 :
Total Pages : 171 pages
Book Rating : 4.:/5 (115 download)
Download or read book Transport Phenomena in Plasmas as an Initial Value Problem written by David A. Huchital and published by . This book was released on 1965 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kimitaka Itoh
Publisher :
ISBN 13 :
Total Pages : 31 pages
Book Rating : 4.:/5 (355 download)
Download or read book Physics of Transport Phenomena in Magnetic Confinement Plasmas written by Kimitaka Itoh and published by . This book was released on 1992 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : B. B. Robinson
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (713 download)
Download or read book A Variational Description of Transport Phenomena in a Plasma written by B. B. Robinson and published by . This book was released on 1961 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : N. Pan
Publisher : Woodhead Pub Limited
ISBN 13 : 9781845691639
Total Pages : 93 pages
Book Rating : 4.6/5 (916 download)
Download or read book Fluid Transport Phenomena in Fibrous Materials written by N. Pan and published by Woodhead Pub Limited. This book was released on 2006 with total page 93 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Textile Progress monograph series provides a critical and comprehensive examination of the origination and application of developments in the textile industry and its products. This issue reviews recent developments in the understanding of the fundamentals of liquid transport phenomena in fibrous materials, and deals with a wide range of issues, many of which are complex and thus still inadequately understood.
Author : A.T.Y. Lui
Publisher : Elsevier
ISBN 13 : 008045769X
Total Pages : 527 pages
Book Rating : 4.0/5 (84 download)
Download or read book Multiscale Coupling of Sun-Earth Processes written by A.T.Y. Lui and published by Elsevier. This book was released on 2005-07-06 with total page 527 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many approaches exist for scientific investigations and space research is no exception. The early approach during which each space plasma region within the Sun-Earth system was investigated separately with physics-based tools has now progressed to encompass investigations on coupling between these regions. Ample evidence now exists indicating the dynamic processes in these regions exhibit disturbances over a wide range of scales both in time and space. This new reckoning naturally leads to an emerging perspective of probing these natural phenomena with concepts and tools developed in modern statistical mechanics for physical processes governing the evolution of out-of-equilibrium and complex systems. These new developments have prompted a topical conference on Sun-Earth connection, held on February 9-13, 2004 at Kailua-Kona, Hawaii, USA, with the goal of promoting interactions among scientists practicing the traditional physics-based approach and those utilizing modern statistical techniques. This monograph is a product of this conference, a compilation of thirty-nine articles assembled into seven chapters: (1) multiscale features in complexity dynamics, (2) space storms, (3) magnetospheric substorms, (4) turbulence and magnetic reconnection, (5) modeling and coupling of space phenomena, (6) techniques for multiscale space plasma problems, and (7) present and future multiscale space missions. These articles show a diversity of space phenomena exhibiting scale free characteristics, intermittency, and non-Gaussian distributions of probability density function of fluctuations in the physical parameters of the Sun-Earth system. The scope covers the latest observations, theories, simulations, and techniques on the multiscale nature of Sun-Earth phenomena and underscores the usefulness in cross-disciplinary exchange needed to unravel the underlying physical processes, which may eventually lead to a possible unified description and prediction for space disturbances. * Extensive collection of state-of-the-art papers on multiscale coupling of Sun-Earth Processes * Present and future multiscale space missions * New techniques and models for performing multiscale analysis
Author : W. Dietze
Publisher : Springer Science & Business Media
ISBN 13 : 9783540114741
Total Pages : 680 pages
Book Rating : 4.1/5 (147 download)
Download or read book Technology of Si, Ge, and SiC / Technologie Von Si, Ge und SiC written by W. Dietze and published by Springer Science & Business Media. This book was released on 1983-12 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:
